from http://www.eecis.udel.edu/~mills/ntp/servers.html, http://www.eecis.udel.edu/~mills/ntp.html, and NTP Servers at http://support.ntp.org/bin/view/Servers/WebHome

Public NTP Secondary (stratum 2) Time Servers

pogo9.gifPogo, Walt Kelly

Please send corrections or additions to David Mills <mills@udel.edu> in HTML format as used in the list pages. If an error is found by other than the responsible person, please first request that person to submit the correction. See Public NTP Time Servers for the rules of engagement and general conditions of use.

Note that the lists are updated frequently, so please do not cache them and please do not reveal links to the lists themselves. Note that the names of the lists are changed on a regular basis in order to discourage direct links.

The servers in this list are sorted first by country code, then state code (US only), then host name. Last update: 07:03 PM UTC Saturday, May 08, 2005

Related Links

Public NTP Primary (stratum 1) Time Servers

Active Servers

  1. AR time.sinectis.com.ar (216.244.192.3)
    Location: Sinectis S.A., Buenos Aires (Argentina)
    Geographic Coordinates: 3432'S, 5820'W
    Service Area: Argentina
    Synchronization: NTP V3 secondary (stratum 2), i686/Linux
    Access Policy: open access, please send a message to notify.
    Contact: timekeeper@sinectis.com.ar
    Note: time is an alias and the IP address may change, please use DNS.
  2. AR tick.nap.com.ar (200.49.40.1)
    Location: Network Access Point, Buenos Aires, Argentina
    Synchronization: NTP V3 secondary (stratum 2), Cisco IOS
    Service Area: Argentina
    Access Policy: open access, please send a message to notify
    Contact: Pablo J. Fritz (timekeeper2002@nap.com.ar)
    Note: tick.nap.com.ar is a CNAME
  3. AR tock.nap.com.ar (200.49.40.15)
    Location: Network Access Point, Buenos Aires, Argentina
    Synchronization: NTP V3 secondary (stratum 2), Cisco IOS
    Service Area: Argentina
    Access Policy: open access, please send a message to notify
    Contact: Pablo J. Fritz (timekeeper2002@nap.com.ar)
    Note: tock.nap.com.ar is a CNAME
  4. AU ntp.saard.net (203.21.37.18)
    Location: The University of Adelaide, Adelaide, South AUSTRALIA
    Synchronization: NTP secondary (stratum 2), DEC 3000/300L OSF/1
    Service Area: AARNet
    Access Policy: open access
    Contact: Lachlan Cameron Smith (lachlan.cameronsmith@adelaide.edu.au)
  5. BE ntp1.belbone.be (195.13.23.5)
    Location: Brussels, Belgium
    Synchronization: xntpd (stratum 2), linux/unix
    Service Area: European Union
    Access Policy: open access
    Contact: Belbone NOC (timemaster@belbone.be)
  6. BE ntp2.belbone.be (195.13.1.153)
    Location: Brussels, Belgium
    Synchronization: xntpd (stratum 2), linux/unix
    Service Area: European Union
    Access Policy: open access
    Contact: Belbone NOC (timemaster@belbone.be)
  7. BR ntp.cais.rnp.br (200.144.121.33)
    Location: Brazilian Research Network/Rede Nacional de Pesquisa (RNP)
    Synchronization: NTP V4 Secondary (stratum 2), Sun SPARC10/Solaris,
    Service Area: Brazil
    Access Policy: Open access to stratum 2 and stratum 3 NTP servers. Please, send a mail to notify.
    Contact: ntp-admin@cais.rnp.br
  8. BR ntp.hiway.com.br (200.246.53.5)
    Location: Brazil, SP, Valinhos (near Sao Paulo) Hiway Internet Provider Valinhos
    Geographic Coordinates: 22:58:22.4S 47:00:19.7W / Alt +729m (GPS WGS84)
    Synchronization: NTP V4 Secondary (stratum 2), Linux i586, NTPd v.4.1.71
    Service Area: Brazil
    Access Policy: Open access. Please, send a mail to notify.
    Contact: Fernando Braghetto, webmaster@hiway.com.br, 55 19 38694300
    Note: IP address are subject to change; use DNS
  9. BR ntp.massayonet.com.br (200.254.135.2)
    Location: Telemacro Sistemas e Servišos
    Synchronization: NTP V4 Secondary (stratum 2), OpenBSD 3.4
    Service Area: Brazil
    Access Policy: Open access to stratum 2 and stratum 3 NTP servers. Please send a mail to notify Contact: ntp@massayonet.com.br
  10. BR ntp.pop-pr.rnp.br (200.19.74.21)
    Location: PoP-PR/Brazilian Research Network (RNP)
    Synchronization: NTP V4 Secondary (stratum 2), IBM RS6000 - 43P-240 /Debian GNU Linux
    Service Area: Brazil
    Access Policy: Open access to stratum 2 server. Please, send a mail to notify.
    Contact: ntp-admin@pop-pr.rnp.br
  11. BR ntp.ufes.br (200.137.65.132)
    Location: POP-ES Federal University of Espirito Santo / POP-ES
    Universidade Federal do Espirito Santo (UFES)
    Synchronization: NTP V4 Secondary (stratum 2), AIX 4
    Service Area: Brazil
    Access Policy: Open access to stratum 2 and stratum 3 NTP servers. Please, send a mail to notify.
    Contact: ntp-admin@ufes.br
  12. BR ntp1.pucpr.br (200.192.112.8)
    Location: Brazilian / Pontificia Universidade Catolica do Parana
    Synchronization: NTP V4 secondary (stratum 2),
    Sun SPARC4/Solaris 7
    Service =C1rea: Brazil
    Access Policy:open access to stratum 2 server
    Contact: ntp1@pucpr.br
  13. CA ntp.cpsc.ucalgary.ca (136.159.2.2)
    Location: University of Calgary, Calgary, Alberta, Canada
    Synchronization: NTP V4 Secondary, i686/Solaris
    Service Area: Canada
    Access Policy: open access
    Contact: Brad Arlt (timekeeper@cpsc.ucalgary.ca)
  14. CA ntp1.cmc.ec.gc.ca
    Location: Canadian Meteorological Centre, Dorval, Québec, Canada
    Synchronization: NTP V4 secondary SGI/Unix
    Service Area: Eastern Canada
    Access Policy: open access
    Contact: ( ntp-admin@cmc.ec.gc.ca)
  15. CA ntp2.cmc.ec.gc.ca
    Location: Canadian Meteorological Centre, Dorval, Québec, Canada
    Synchronization: NTP V4 secondary SGI/Unix
    Service Area: Eastern Canada
    Access Policy: open access
    Contact: ( ntp-admin@cmc.ec.gc.ca)
  16. CA tick.utoronto.ca (128.100.103.252)
    Location: University of Toronto, Toronto, Ontario, CANADA
    Synchronization: NTP V3 secondary (stratum 2), Sparc 10, Solaris 2.5.1
    Service Area: Eastern Canada
    Access Policy: open access, send email to notify.
    Contact: Russell Sutherland (russ@madhaus.cns.utoronto.ca)
    Note: IP addresses are subject to change; please use DNS
  17. CA time.chu.nrc.ca (209.87.233.53)
    Location: National Research Council of Canada, Ottawa, Ontario, Canada
    Geographic Coordinates: 45:17:41N, 75:45:27W
    Synchronization: NTP V3 secondary (stratum 2), PC/Linux
    Service Area: Canada
    Access Policy: open access
    Contact: time@nrc.ca
    Note: IP address subject to change; please use DNS.
  18. CA time.nrc.ca (132.246.168.148)
    Location: National Research Council of Canada, Ottawa, Ontario, Canada
    Geographic Coordinates: 45:27N, 75:37W
    Synchronization: NTP V3 secondary (stratum 2), PC/Linux
    Service Area: Canada
    Access Policy: open access
    Contact: time@nrc.ca
    Note: time is an alias and the IP address may change; please use DNS.
  19. CA timelord.uregina.ca (142.3.100.15)
    Location: University of Regina, Regina, Saskatchewan, Canada
    Geographic Coordinates: 50:25N , 104:35:20 W
    Synchronization: NTP V3 secondary (stratum 2), Sun Sparc 5
    Service Area: SASK#net, CA*net, Canada
    Access Policy: open access
    Contact: Mark Haidl (timekeeper@uregina.ca)
    Note: please limit to one or two hosts per site.
  20. CA tock.utoronto.ca (128.100.100.128)
    Location: University of Toronto, Toronto, Ontario, CANADA
    Synchronization: NTP V3 secondary (stratum 2), Sparc 5, Solaris 2.5
    Service Area: Eastern Canada
    Access Policy: open access, send email to notify.
    Contact: Russell Sutherland (russ@madhaus.cns.utoronto.ca)
    Note: IP addresses are subject to change; please use DNS
  21. CZ ntp.cgi.cz (81.0.239.181)
    Location: Prague, The Czech Republic
    Synchronization: NTP V4 secondary (stratum 2), PC/FreebSD
    Service Area: Czech Republic
    Access Policy: open access
    Contact: Jakub Chromy (helpdesk@cgi.cz)
    Note: ntp is an alias and the IP address may change; please use DNS.
  22. CZ ntp.globe.cz (81.95.96.3)
    Location: Prague, The Czech Republic
    Synchronization: NTP V4 secondary (stratum 2), PC/Linux
    Service Area: Czech Republic
    Access Policy: open access
    Contact: Jan Panoch (panoch.jan@globe.cz)
    Note: ntp is an alias and the IP address may change; please use DNS.
  23. CZ ntp.karpo.cz (217.11.227.68)
    Location: Prague, The Czech Republic
    Synchronization: NTP V4 secondary (stratum 2), PC/Linux
    Service Area: Czech Republic
    Access Policy: open access
    Contact: Karel Zvara (zvara@karpo.cz)
    Note: ntp is an alias and the IP address may change; please use DNS.
  24. CZ ntp1.contactel.cz (212.65.193.3)
    Location: Prague, The Czech Republic
    Synchronization: NTP V4 secondary (stratum 2), PC/Linux
    Service Area: Czech Republic
    Access Policy: open access
    Contact: Contactel hostmasters (hostmaster@ctt.cz)
    Note: ntp1.contactel.cz is an alias and the IP address may change; please use DNS.
  25. CZ ntp2.contactel.cz (212.65.193.4)
    Location: Prague, The Czech Republic
    Synchronization: NTP V4 secondary (stratum 2), PC/Linux
    Service Area: Czech Republic
    Access Policy: open access
    Contact: Contactel hostmasters (hostmaster@ctt.cz)
    Note: ntp1.contactel.cz is an alias and the IP address may change; please use DNS.
  26. DE tick.fh-augsburg.de (141.82.30.251)
    Location: Augsburg University of Applied Sciences (FH), Augsburg, Bavaria, Germany
    Synchronization: NTP V3 secondary (stratum 2), i486/Linux
    Service area: Germany, Europe, European academic community
    Access policy: please check the details at our website
    Contact: Burkhard Erdlenbruch (erd@rz.fh-augsburg.de)
  27. DE tock.fh-augsburg.de (141.82.30.252)
    Location: Augsburg University of Applied Sciences (FH), Augsburg, Bavaria, Germany
    Synchronization: NTP V3 secondary (stratum 2), i486/Linux
    Service area: Germany, Europe, European academic community
    Access policy: please check the details at our website
    Contact: Burkhard Erdlenbruch (erd@rz.fh-augsburg.de)
  28. DE tack.fh-augsburg.de (141.82.30.253)
    Location: Augsburg University of Applied Sciences (FH), Augsburg, Bavaria, Germany
    Synchronization: NTP V4 secondary (stratum 2), i486/Linux
    Service area: Germany, Europe, European academic community
    Access policy: please check the details at our website
    Contact: Burkhard Erdlenbruch (erd@rz.fh-augsburg.de)
  29. ES hora.oxixares.com [217.127.2.161]
    Location: Ogijares (Granada/SPAIN)
    Synchronization: ntp v4.1.1 secondary (stratum 2)/athlon XP 2500+/SuSE Linux 8.2
    Service Area: Spain
    Access Policy: Public (glad to receive a note)
    Contact: timekeeper@oxixares.com
  30. ES slug.ctv.es [194.179.52.14] (will add an alias for this purpose)
    Location: Altea (Alicante/SPAIN)
    Synchronization: Stratum-2/i486DX2/66/Linux
    Service Area: Spain
    Access Policy: Public (glad to receive a note)
    Contact: Luis Colorado (luis.colorado@slug.ctv.es)
  31. FI tick.keso.fi (194.137.39.67)
    Location: Keski-Savon Oppimiskeskus, Pieksamaki, Finland, Europe
    Synchronization: NTP-3, i686/Linux
    Service area: Finland
    Access policy: open access, please send a message to notify
    Contact: root@keso.fi
    Note: tick is an alias, please use DNS
  32. FI tock.keso.fi (194.137.39.68)
    Location: Keski-Savon Oppimiskeskus, Pieksamaki, Finland, Europe
    Synchronization: NTP-3, i586/Linux
    Service area: Finland
    Access policy: open access, please send a message to notify
    Contact: root@keso.fi
    Note: tock is an alias, please use DNS
  33. FR ntp.ndsoftwarenet.com
    Location: NDSoftware, Paris, France
    Synchronization: NTP secondary (stratum 2)
    Service area: World
    Access policy: open access, please send a message to notify
    Contact: NDSoftware NTPmaster (ntpmaster@ndsoftwarenet.com)
    Note: IP address subject to change; please use DNS.
  34. FR ntp.obspm.fr
    Location: BNM-SYRTE, Observatoire de Paris, Paris, France
    Synchronization: NTP V4 secondary (stratum-2), i386/Linux
    Service Area: France/Europe
    Access Policy: open access, but please send a message to notify
    Contact: info.bnm-syrte@obspm.fr, More Informations?
    Note: use DNS for IP address.
  35. FR ntp.tuxfamily.net
    Location: SFINX or TeleHouse2, Paris, France
    Synchronization: NTP V4 secondary (stratum-2), Debian GNU/Linux ix86
    Service Area: France/Europe
    Access Policy: open access, no need to notify
    Contact: ntp-adm@tuxfamily.net, More Informations ?
    Note: use DNS for IP address
    Note: ntp.tuxfamily.net is an alias for ntp1.tuxfamily.net and ntp2.tuxfamily.net
    Note: see ntp{1,2}.tuxfamily.net entries for more information
  36. FR ntp1.tuxfamily.net (80.67.177.2)
    Location: SFINX, Paris, France
    Synchronization: NTP V4 secondary (stratum-2), Debian GNU/Linux ix86
    Service Area: France/Europe
    Access Policy: open access, no need to notify
    Contact: ntp-adm@tuxfamily.net, More Informations ?
    Note: use DNS for IP address is recommended
    Note: peer with ntp2.tuxfamily.net
    Note: If you use this service reguraly, you should subscribe to ntp@tuxfamily.org
  37. FR ntp2.tuxfamily.net (80.67.179.2)
    Location: TeleHouse2, Paris, France
    Synchronization: NTP V4 secondary (stratum-2), Debian GNU/Linux ix86
    Service Area: France/Europe
    Access Policy: open access, no need to notify
    Contact: ntp-adm@tuxfamily.net, More Informations ?
    Note: use DNS for IP address is recommended
    Note: peer with ntp1.tuxfamily.net
    Note: If you use this service reguraly, you should subscribe to ntp@tuxfamily.org
  38. FR ntp.univ-lyon1.fr (134.214.100.6)
    Location: CISM, Lyon, France
    Synchronization: NTP V3 secondary (stratum 2), Sun SS10
    Service Area: France, Switzerland, Italy, Europe
    Access Policy: open access
    Contact: ntp-adm@univ-lyon1.fr
    Note: consult DNS to get host address, ntp is an alias.
    Note: we would appreciate getting a little note if you make regular use of this server, so that we can put you on our NTP mailing-list.
  39. FR ntp.via.ecp.fr (138.195.130.71)
    Location: VIA, Ecole Centrale Paris, France
    Synchronization: ntp v4.0.99c (stratum 2), Debian GNU/Linux x86
    Service Area: France/Europe
    Policy: open access, send email to notify. Please limit access to one or two hosts per site (large sites should set up their own ntp server)
    Contact: ntpadmin@via.ecp.fr
  40. GR ntp.mfa.gr (193.92.123.152)
    Location: Athens, GR
    Service Area: Greece
    Synchronization: NTP V3 secondary (stratum 2), i686/FreeBSD
    Access Policy: open access/GR, please send a message to notify.
    Contact: ntp@mfa.gr
    Note: "ntp" is an alias and the IP address may change, please use DNS.
  41. GR ntp.mikros.com (213.5.174.2)
    Location: Argostoli, Kefalonia, GR
    Geographic Coordinates: 3810N 2030E
    Service Area: Greece
    Synchronization: NTP V3 secondary (stratum 2), i686/Linux
    Access Policy: open access/GR, please send a message to notify.
    Contact: ntp@mikroskosmos.com
    Note: "ntp" is an alias and the IP address may change, please use DNS.
  42. HK ntp.cuhk.edu.hk
    Location: The Chinese University of Hong Kong.
    Geographic Coordinates: 22:25:10N, 114:12:22E
    Synchronization: NTP V3 secondary (stratum 2), i686/Linux
    Service Area: Hong Kong, Taiwan, China, and South East Asia
    Access Policy: open access
    Contact: Connie Law (connieL@cuhk.edu.hk), <kinming@cuhk.edu.hk> Note: IP addresses are subject to change; please use DNS
  43. HR zg1.ntp.carnet.hr (161.53.2.70)
    Location: CARNet (Croatian Academic and Research Network), Zagreb, Croatia
    Synchronization: NTP V4 secondary (stratum 2), Sun Sparc/Solaris
    Service Area: Croatia/Europe
    Access Policy: open access, glad to receive a note
    Contact: ntp@carnet.hr
    Note: IP address subject to change; better use DNS
  44. HR zg2.ntp.carnet.hr (161.53.123.4)
    Location: CARNet (Croatian Academic and Research Network), Zagreb, Croatia
    Synchronization: NTP V4 secondary (stratum 2), Sun Sparc/Solaris
    Service Area: Croatia/Europe
    Access Policy: open access, glad to receive a note
    Contact: ntp@carnet.hr
    Note: IP address subject to change; better use DNS
  45. HR st.ntp.carnet.hr (161.53.30.3)
    Location: CARNet (Croatian Academic and Research Network), Split, Croatia
    Synchronization: NTP V4 secondary (stratum 2), Sun Sparc/Solaris
    Service Area: Croatia/Europe
    Access Policy: open access, glad to receive a note
    Contact: ntp@carnet.hr
    Note: IP address subject to change; better use DNS
  46. HR ri.ntp.carnet.hr (161.53.40.3)
    Location: CARNet (Croatian Academic and Research Network), Rijeka, Croatia
    Synchronization: NTP V4 secondary (stratum 2), Sun Sparc/UNIX
    Service Area: Croatia/Europe
    Access Policy: open access, glad to receive a note
    Contact: ntp@carnet.hr
    Note: IP address subject to change; better use DNS
  47. HR os.ntp.carnet.hr (161.53.200.8)
    Location: CARNet (Croatian Academic and Research Network), Osijek, Croatia
    Synchronization: NTP V4 secondary (stratum 2), Sun Sparc/Solaris
    Service Area: Croatia/Europe
    Access Policy: open access, glad to receive a note
    Contact: ntp@carnet.hr
    Note: IP address subject to change; better use DNS
  48. HU time.kfki.hu (148.6.0.1)
    Location: KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary
    Synchronization: NTP secondary (stratum 2), Sun/Solaris
    Service Area: HUNGARNET
    Access Policy: open access, send email to notify.
    Contact: time@sunserv.kfki.hu
  49. ID ntp.incaf.net (202.180.0.71)
    Location: Jakarta, Indonesia
    Synchronization: NTP V4 Secondary, i686/Linux
    Service Area: Indonesia
    Access Policy: open access
    Contact: admin (timekeeper@incaf.net)
  50. IE ntp.maths.tcd.ie
    Location: School of Mathematics, Trinity College, Dublin, Ireland.
    Synchronization: NTPV4 secondary (stratum 2), Intel, FreeBSD 2.2
    Service Area: Ireland, UK
    Access Policy: open access, please send a message to notify.
    Contact: time@maths.tcd.ie
    Note: ntp.cs.tcd.ie, ntp.maths.tcd.ie and ntp.tcd.ie peer together over local area net. It is normally sufficient just to pick one machine to peer with.
  51. IT ntps.net4u.it (80.83.192.129)
    Location: 4u Srl, Vercelli, Italy
    Synchronization: NTP secondary (stratum 2), Linux 2 on Intel PIII 500MHz
    Service area: Italy
    Access policy: open access, please send a message to notify
    Contact: timemaster@net4u.it
  52. JP ntp.cyber-fleet.net
    Location: Cyber Fleet, Inc., Tokyo, Japan
    Geographic Coordinates: 35:43:59N, 139:40:50E
    Synchronization: NTP V4 secondary (stratum 2), PC BSD/OS
    Service Area: Japan/East Asia
    Access policy: open access, please send a message to notify
    Contact: pdp@cyber-fleet.net
    Note: the IP address may change, please use DNS
    Note: IPv4/IPv6 available.
  53. KR ntp.ewha.net [211.39.143.103]
    Location: KT-IDC, Bundang, Korea
    Geographic Coordinates: 37:24:45.3N 127:07:28.5E (WGS 84)
    Synchronization: NTP V3 (stratum 2), i586/Linux
    Service area: Korea
    Access policy: Open access within Korea, send email to notify. Please limit access to one or two hosts per site (large sites should set up their own ntp server)
    Contact: ntp@ewha.net
    Note: IP addresses are subject to change; please use DNS
  54. MX ntp2a.audiotel.com.mx (200.34.146.67)
    Location: Audiotel office, Mexico D.F., Mexico
    Synchronization: NTP V3 secondary (stratum 2), NeXTstation/33
    Service Area: Avantel, MCINet, Mexico
    Access Policy: open access, but please send a message to notify.
    Contact: Pedro Resendiz (resendiz@audiotel.com.mx)
  55. MX ntp2b.audiotel.com.mx (200.34.146.68)
    Location: Audiotel office, Mexico D.F., Mexico
    Synchronization: NTP V3 secondary (stratum 2), NeXTstation/33
    Service Area: Avantel, MCINet, Mexico
    Access Policy: open access, but please send a message to notify.
    Contact: Pedro Resendiz (resendiz@audiotel.com.mx)
  56. MX ntp2c.audiotel.com.mx (200.34.146.69)
    Location: Audiotel office, Mexico D.F., Mexico
    Synchronization: NTP V3 secondary (stratum 2), NeXTstation/33
    Service Area: Avantel, MCINet, Mexico
    Access Policy: open access, but please send a message to notify.
    Contact: Pedro Resendiz (resendiz@audiotel.com.mx)
  57. MY ntp.doubleukay.com
    Location: Cyberjaya, Malaysia
    Synchronization: NTP V4 secondary (stratum 2), Intel/Linux
    Service Area: Malaysia
    Access Policy: open access
    Contact: Woon Wai Keen (timekeeper@doubleukay.com)
  58. NG ntp.supernet300.com (216.72.109.4)
    Location: Supernet300, Lagos, Nigeria
    Synchronization: NTP secondary (stratum 2), PC/Linux
    Service Area: Western Africa, primarily Nigerian NITEL backbone
    Access Policy: Open access, please send an email to notify before use.
    Contact: timelords@supernet300.com
    Note: Please use the DNS name-the IP address can (and likely will) change.
  59. NL ntp1.theinternetone.net (62.4.94.221)
    Location: The Internetone, Abovenet Amsterdam, The Netherlands
    Synchronization: NTP V4 secondary (stratum 2), i686/Linux
    Service Area: Netherlands/Europe, Abovenet
    Access Policy: open access, please send a message to notify
    Contact: Cees de Groot (cg@theinternetone.net)
    Note: please choose one of ntp{1,2,3}.theinternetone.net. Use DNS, addresses subject to change
  60. NL ntp2.theinternetone.net (62.4.94.8)
    Location: The Internetone, Abovenet Amsterdam, The Netherlands
    Synchronization: NTP V4 secondary (stratum 2), i686/Linux
    Service Area: Netherlands/Europe, Abovenet
    Access Policy: open access, please send a message to notify
    Contact: Cees de Groot (cg@theinternetone.net)
    Note: please choose one of ntp{1,2,3}.theinternetone.net. Use DNS, addresses subject to change
  61. NL ntp3.theinternetone.net (62.4.94.210)
    Location: The Internetone, Abovenet Amsterdam, The Netherlands
    Synchronization: NTP V4 secondary (stratum 2), i686/Linux
    Service Area: Netherlands/Europe, Abovenet
    Access Policy: open access, please send a message to notify
    Contact: Cees de Groot (cg@theinternetone.net)
    Note: please choose one of ntp{1,2,3}.theinternetone.net. Use DNS, addresses subject to change
  62. NO fartein.ifi.uio.no (129.240.64.3)
    Location: University of Oslo, Norway
    Geographic Coordinates: 59:56:32N, 10:43:22E
    Synchronization: NTP secondary (stratum 2), DEC Alpha OSF/1 V4.0
    Service Area: NORDUnet
    Access Policy: open access
    Contact: timekeeper@ifi.uio.no)
  63. NO time.alcanet.no (use DNS)
    Location: Alcanet International, Oslo, Norway
    Synchronization: NTP V3 secondary (stratum 2), PC/Linux
    Service Area: Europe=20
    Access Policy: open access, notify message appreciated
    Contact: timekeeper@alcanet.no
  64. NZ ntp.iprolink.co.nz (use DNS)
    Location: Iprolink, CBD, Auckland, New Zealand
    Geographic coordinates: 36:50:59.6 S, 174:45:31.9 E, (GPS NZ Geodatum 1949)
    Synchronisation: NTP V3 (stratum 2), Cisco Router
    Service Area: New Zealand
    Access Policy: Open access within New Zealand, send email to notify.
    Contact: ntp@iprolink.co.nz
    Note: IP addresses are subject to change; please use DNS
  65. NZ ntp.massey.ac.nz (Use DNS)
    Location: Massey University, Palmerston North, New Zealand
    Synchronisation: NTP V4 (stratum 2), PC/Linux
    Service Area: New Zealand
    Access Policy: Open access within New Zealand
    Contact: ntp@massey.ac.nz
    Note: if multiple servers are required, use ntp1 and ntp2
  66. NZ ntp.public.otago.ac.nz (139.80.64.114)
    Location: University of Otago, Dunedin, New Zealand
    Synchronisation: NTP V3 (stratum 2), Linux on Intel
    Service Area: New Zealand
    Access Policy: Open access within New Zealand, send email to notify.
    Contact: ntp@otago.ac.nz
    Note: IP addresses are subject to change; please use DNS
  67. NZ tk1.ihug.co.nz, tk2.ihug.co.nz, tk3.ihug.co.nz (use DNS)
    Location: ihug, Central city, Auckland, New Zealand
    Synchronisation: NTP V4 (stratum 2), PC/Linux
    Service Area: New Zealand
    Access Policy: Open access within New Zealand, send email to notify.
    Contact: ntp@staff.ihug.co.nz
    Note: IP addresses are subject to change; please use DNS
  68. PL info.cyf-kr.edu.pl: 149.156.4.11
    Location: Academic Computer Centre, CYFRONET, Krakow, Poland
    Synchronization: NTP V3 secondary (stratum 2), HP/Unix
    Service Area: Poland/Europe
    Access policy: open access, please send a message to notify
    Contact: Jerzy.Pawlus@cyf-kr.edu.pl
  69. PT bug.fe.up.pt (193.136.54.1)
    Location: Oporto University, Portugal
    Synchronization: NTP secondary (stratum 2), i486/Linux
    Service Area: Portugal/Europe
    Access Policy: For use only by prior arrangement. Mail
    timemaster@bug.fe.up.pt for more information.
  70. RO ntp.ip.ro (212.93.129.107)
    Location: IP Bucharest, Romania
    Synchronization: NTP V3, Linux/i586
    Service Area: Romania/Europe
    Access Policy: open access, but please send a message to notify
    Contact: ntp@ntp.ip.ro
    Note: use DNS for IP address.
  71. RU ntp.psn.ru (194.149.67.130)
    Location: Pushchino, Moscow region, Russia
    Geographic Coordinates: 54:50N, 37:37E
    Synchronization: NTP secondary (stratum 2), Alpha/Linux
    Service area: Russia
    Access policy: open access, please send a message to notify
    Contact: clockmaster@psn.ru
  72. RU sign.chg.ru (193.233.46.10)
    Location: Scientific Center in Chernogolovka, Moscow region, Russia
    Synchronization: NTP V3 secondary (stratum 2), PC/FreeBSD 3.1
    Service Area: Russia
    Access Policy: open access, please send e-mail to notify.
    Contact: Andrew Neporada (andrew@chg.ru) or time@sign.chg.ru
  73. SE ntp.lth.se (130.235.20.3)
    Location: Lund Institute of Technology, Lund, Sweden
    Synchronization: NTP V3 secondary (stratum 2), Sun/Solaris
    Service Area: Sweden, NORDUnet
    Access Policy: open access, send email to notify. Please limit access to one or two hosts per site (large sites should set up their own ntp server)
    Contact: timemaster@lth.se
  74. SE time.flygplats.net
    Location: flygplats.net, Sigtuna, Sweden
    Synchronization: NTP V4 secondary, i386, FreeBSD
    Service Area: Europe
    Access Policy: Open access
    Contact: timekeeper;@flygplats.net
    Note: IP address subject to change; please use DNS.
  75. SG ntp.shim.org
    Location: Singapore
    Synchronization: NTP secondary (stratum 2), Intel/Linux
    Service Area: Singapore
    Access Policy: open access
    Contact: Dr Ivan Shim
  76. SI biofiz.mf.uni-lj.si (193.2.69.10)
    Location: Institute of Biophysics, University of Ljubljana, Slovenia
    Geographic Coordinates: 46:03:09N, 14:30:40E
    Synchronization: NTP V4 secondary (stratum 2), IBM/Linux
    Service Area: Slovenia/Europe
    Access Policy: open access, please send a message to notify
    Contact: Primoz Peterlin (time@biofiz.mf.uni-lj.si)
  77. SI ntp1.arnes.si (193.2.1.66)
    Location: ARNES (Academic and Research Network of Slovenia), Ljubljana, Slovenia
    Synchronization: NTP V4 secondary (stratum 2), Sun Sparc/Solaris
    Service Area: Slovenia/Europe
    Access Policy: open access with some restrictions (see http://www.arnes.si/english/ntp_access.html)
    Contact: ntp-admin@arnes.si
    Note: IP address subject to change; better useDNS
  78. SI ntp2.arnes.si (193.2.1.92)
    Location: ARNES (Academic and Research Network of Slovenia), Ljubljana, Slovenia
    Synchronization: NTP V4 secondary (stratum 2), Sun Sparc/Solaris
    Service Area: Slovenia/Europe
    Access Policy: open access with some restrictions (see http://www.arnes.si/english/ntp_access.html)
    Contact: ntp-admin@arnes.si
    Note: IP address subject to change; better use DNS
  79. SI time.ijs.si (193.2.4.6)
    Location: J. Stefan Institute, Ljubljana, Slovenia
    Geographic Coordinates: 46:02:35N, 14:29:17E (WGS84)
    Synchronization: NTP V4 secondary (stratum 2), DEC Alpha / Digital Unix
    Service Area: Slovenia/Europe
    Access Policy: open access, glad to receive a note
    Contact: Mark Martinec (timekeeper@ijs.si)
    Note: IP address subject to change; better use DNS
  80. SI time.ijs.si (193.2.4.6)
    Location: J. Stefan Institute, Ljubljana, Slovenia
    Geographic Coordinates: 46° 2.517'N, 14° 29.241'E (WGS84)
    Synchronization: NTP V4 secondary (stratum 2), Compaq (DEC) Alpha / Tru64 Unix with MICRO_TIME kernel option
    Service Area: Slovenia/Europe
    Access Policy: open access, glad to receive a note
    Contact: Mark Martinec (timekeeper@ijs.si); More info?
    Note: IP address subject to change; better use DNS
  81. SV clock.cimat.ues.edu.sv (168.243.7.66)
    Location: Faculty of Natural Sciences and Mathematics, University of El Salvador, San Salvador, El Salvador
    Synchronization: NTP V4 secondary (stratum 2), PC/Linux
    Service Area: Central America
    Access Policy: open access, please send a message to notify
    Contact: (admin@cimat.ues.edu.sv)
    Note: clock.cimat.ues.edu.sv is a CNAME
  82. UK a.ntp.alphazed.net (212.42.1.207)
    Location: Telehouse, London E14
    Synchronization: NTP 4, FreeBSD
    Service Area: all areas
    Access Policy: open access
    Contact: ntp@alphazed.com
    Note: Please check http://www.alphazed.co.uk/support/ntp.php
  83. TR time.deu.edu.tr (193.140.151.9)
    Location: Dokuz Eylul University, Izmir, Turkey
    Synchronization: NTP V4 Secondary (stratum 2), Sun SPARC10/Solaris,
    Service Area: Turkey
    Access Policy: Open access Please, send a mail to notify.
    Contact: berent@deu.edu.tr
    Note: IP address are subject to change; please use DNS
  84. UK bear.zoo.bt.co.uk (132.146.236.132)
    Location: BT Adastral Park, Ipswich, England
    Synchronisation: NTP Secondary, PentiumIII/Linux 2.4
    Service Area: UK
    Access Policy: Open Access
    Contact: John Sager, jcs@zoo.bt.co.uk
    Note: WYSIWYG. No service guarantee, so don't use it as your sole sync source.
  85. UK ntp.cis.strath.ac.uk
    Location: Dept. Computer and Information Sciences, University of Strathclyde, Glasgow, Scotland.
    Geographic Coordinates: 04:14W, 55:52N
    Synchronization: NTP V4 secondary
    Service Area: UK/Europe
    Access Policy: open access
    Contact: Ian Gordon (ntp@cis.strath.ac.uk)
    Note: Do not use IP address because these can change
  86. UK ntp.exnet.com (194.207.34.9)
    Location: ExNet Ltd, London, UK
    Synchronization: NTP secondary (stratum 2), Sun-4/Unix
    Service area: UK/Europe/any
    Access policy: semi-open access, please send message first for access
    Contact: sysadmin@exnet.com or dhd@exnet.com
    Note: Please see our Web page before using. Please use CNAME ntp.exnet.com since IP address may well change.
  87. UK ntp2a.mcc.ac.uk (130.88.202.49)
    Location: University of Manchester, Manchester, England
    Synchronization: NTP secondary (S2), Sun/SunOS
    Service Area: UK
    Access Policy: Open Access
    Contact(s): timelords@mcc.ac.uk
    Note: Please use DNS for address, subject to change
  88. UK ntp2b.mcc.ac.uk (130.88.200.98)
    Location: University of Manchester, Manchester, England
    Synchronization: NTP secondary (S2), PC/FreeBSD
    Service Area: UK
    Access Policy: Open Access
    Contact(s): timelords@mcc.ac.uk
    Note: Please use DNS for address, subject to change
  89. UK ntp2c.mcc.ac.uk (130.88.200.4)
    Location: University of Manchester, Manchester, England
    Synchronization: NTP secondary (S2), PC/FreeBSD
    Service Area: UK
    Access Policy: Open Access
    Contact(s): timelords@mcc.ac.uk
    Note: Please use DNS for address, subject to change
  90. UK ntp2d.mcc.ac.uk (130.88.203.12)
    Location: University of Manchester, Manchester, England
    Synchronization: NTP secondary (S2), SGI/Irix
    Service Area: UK
    Access Policy: Open Access
    Contact(s): timelords@mcc.ac.uk
    Note: Please use DNS for address, subject to change
  91. UK ntp{0|1|2}.sandvika.net (194.164.127.{4|5|6})
    Location: Telehouse Europe, London E14.
    Geographic Coordinates: 51°30.71'N 0°00.08'W
    Synchronisation: NTP V4 secondary Sun UltraSPARC Solaris 8
    Service area: UK / Europe
    Contact: time@sandvika.net
    Note: www.sandvika.net/time (ntp2 new - due online mid-October 2002).
  92. UK ntp0.uk.uu.net 158.43.128.33
    Configuration: NTP V3 secondary (stratum 2), Sun sparc Ultra, Solaris 7, xntpd 3-5.93
    Location: Cambridge, UK
    Service Area: UUNET (formerly known in the UK as PIPEX); UK
    Access Policy: Semi-open access. These are primarily for use by UUNET customers who may use them without asking, but others are welcome to peer if they give notice.
    Contact: timelord@uk.uu.net
    Note: This service is supported on a best-effort basis, but is not guaranteed. UUNET customers should peer with all three: ntp0.uk.uu.net, ntp1.uk.uu.net, and ntp2.uk.uunet.
  93. UK ntp1.uk.uu.net 158.43.128.66
    Configuration: NTP V3 secondary (stratum 2), Sun sparc Ultra, Solaris 7, xntpd 3-5.93
    Location: Cambridge, UK
    Service Area: UUNET (formerly known in the UK as PIPEX); UK
    Access Policy: Semi-open access. These are primarily for use by UUNET customers who may use them without asking, but others are welcome to peer if they give notice.
    Contact: timelord@uk.uu.net
    Note: This service is supported on a best-effort basis, but is not guaranteed. UUNET customers should peer with all three: ntp0.uk.uu.net, ntp1.uk.uu.net, and ntp2.uk.uunet.
  94. UK ntp2.uk.uu.net 158.43.192.66
    Configuration: NTP V3 secondary (stratum 2), Sun sparc Ultra, Solaris 7, xntpd 3-5.93
    Location: London, UK
    Service Area: UUNET (formerly known in the UK as PIPEX); UK
    Access Policy: Semi-open access. These are primarily for use by UUNET customers who may use them without asking, but others are welcome to peer if they give notice.
    Contact: timelord@uk.uu.net
    Note: This service is supported on a best-effort basis, but is not guaranteed. UUNET customers should peer with all three: ntp0.uk.uu.net,
  95. UK tick.tanac.net (195.112.34.51)
    Location: Wibble UK, Aylesbury, Buckinghamshire UK
    Synchronization: NTP secondary (stratum 2), i686/Linux 2.2
    Geographic Coordinates: 51 49 00 N 00 48 00 W
    Service area: United Kingdom
    Access policy: open access, please send a message to notify
    Contact: ntp@tanac.net
  96. UK; time-server.ndo.com (195.7.224.135)
    Location: Telehouse Metro, London EC2A.
    Geographic Coordinates: 51°31.21'N 0°05.01'W
    Synchronisation: NTP secondary, PC/Debian Linux
    Service area: UK / Europe
    Access Policy: Open Access
    Contact: support@ndo.com
  97. US * time.cachenetworks.com (no address, please use dns)
    Location: Multiple, United States
    Synchronization: NTP V4 secondary (stratum 2)
    Service area: US/any
    Access policy: open access, please send a message to notify
    Contact: Matt Levine (matt.levine@cachenetworks.com)
    Note: service is (unicast) anycasted in multiple locations.
  98. US AR sushi.compsci.lyon.edu (150.208.72.154)
    Location: Lyon College Computer Science (Batesville, Arkansas USA)
    Geographic Coordinates: 35.776N, 91.629W
    Service Area: United States
    Synchronization: NTP V4 secondary (stratum 2)
    Access Policy: open access, please send a message to notify.
    Contact: Matt Critcher (timekeeper@compsci.lyon.edu)
    Note: IP's may change. Please use DNS.
  99. US AZ decimal.lib.ci.phoenix.az.us (148.167.132.201)
    Location: Phoenix, AZ
    Synchronization: NTP V4 secondary (stratum 2) P-III/Linux 2.4
    Service Area: North America
    Access Policy: Open access. Please limit access to one or two hosts per site (large sites should set up their own ntp server)
    Contact: timekeeper@phxlib.org
  100. US AZ dewey.lib.ci.phoenix.az.us (148.167.132.200)
    Location: Phoenix, AZ
    Synchronization: NTP V4 secondary (stratum 2) P-III/Linux 2.4
    Service Area: North America
    Access Policy: Open access. Please limit access to one or two hosts per site (large sites should set up their own ntp server)
    Contact: timekeeper@phxlib.org
  101. US AZ ntp.drydog.com (207.211.160.111)
    Location: Tempe, AZ
    Synchronization: NTP V4 secondary (stratum 2) P-III/Linux 2.4
    Service Area: Western United States and Northern Mexico
    Access Policy: open access, please send a message to notify. Please limit access to one or two hosts per site (large sites should set up their own ntp server)
    Contact: Dan Anderson ( timekeeper@drydog.com)
  102. US CA clock.fmt.he.net (216.218.192.202)
    Location: Hurricane Electric, Fremont, California
    Synchronization: NTP V4 primary (GPS), Symmetricom NTS-150
    Service Area: all areas
    Access Policy: open access
    Contact: support@he.net
  103. US CA clock.sjc.he.net (216.218.254.202)
    Location: Hurricane Electric, San Jose, California
    Synchronization: NTP V4 primary (CDMA), Endrun Praecis CNTP
    Service Area: all areas
    Access Policy: open access
    Contact: support@he.net
  104. US CA ntp.ucsd.edu (132.239.254.49)
    Location: UCSD Academic Computing Services/Network Operations, San Diego, CA
    Synchronization: NTP secondary (stratum 2)
    Service Area: CERFNET; NSFNET, SDSC region and nearby
    Access Policy: open access, please send a message to notify.
    Contact: timekeeper@ucsd.edu
  105. US CA ntp1.mainecoon.com (63.192.96.2)
    Location: Quincy, California
    Geographic Coordinates: 39:56.863N, 120:54.657W
    Synchronization: NTP V4 secondary (stratum 2) P-II/X86 Solaris 2.7
    Service Area: North America
    Access Policy: Open Access, please drop us a note so we can add you to our mailing list.
    Contact:time@mainecoon.com or Chris Kennedy (chris@mainecoon.com)
    Note: ntp1 is a CNAME for time service. Please use DNS; IP assignments subject to change.
  106. US CA ntp2.mainecoon.com (63.192.96.3)
    Location: Quincy, California
    Geographic Coordinates: 39:56.863N, 120:54.657W
    Synchronization: NTP V4 secondary (stratum 2) Sun 4/75 Solaris 2.7
    Service Area: North America
    Access Policy: Open Access, please drop us a note so we can add you to our mailing list.
    Contact:time@mainecoon.com or Chris Kennedy (chris@mainecoon.com)
    Note: ntp2 is a CNAME for time service. Please use DNSUS
  107. CA ntp1.sf-bay.org (207.126.97.57)
    Location: San Jose, CA
    Synchronization: NTP secondary (stratum 2), FreeBSD
    Service Area: North America: Northern California and Pacific Northwest
    Access Policy: open access, please send a message to notify
    Contact: Scott Hazen Mueller (clockmaster@sf-bay.org)
  108. US CA ntp2.sf-bay.org (204.74.68.55)
    Location: Los Angeles, CA
    Synchronization: NTP secondary (stratum 2), FreeBSD
    Service Area: North America: Southern California
    Access Policy: open access, please send a message to notify
    Contact: Scott Hazen Mueller (clockmaster@sf-bay.org)
  109. US CA ntp.ucsd.edu (132.239.254.49)
    Location: UCSD Academic Computing Services/Network Operations, San Diego, CA
    Synchronization: NTP secondary (stratum 2)
    Service Area: CERFNET; NSFNET, SDSC region and nearby
    Access Policy: open access, please send a message to notify.
    Contact: timekeeper@ucsd.edu
  110. US CA reloj.kjsl.com (204.87.183.6)
    Location: Salinas, CA, USA
    Synchronization: NTP V3 secondary (stratum 2), MultiNet on VMS
    Service area: Western USA (Layer42 connectivity)
    Access policy: open access, please drop me a note if you use the server so I can keep you on the notify list.
    Contact: <timekeeper@kjsl.com>>
  111. US CA time.berkeley.netdot.net (216.27.190.202)
    Location: Berkeley, CA
    Synchronization: NTP secondary (stratum 2), FreeBSD
    Service Area: North America: Pacific Coast
    Access Policy: open access, please send a message to notify
    Contact: Caleb Haley (chaley@netdot.net)
    Note: time.berkeley.netdot.net is a CNAME
  112. US CA time.five-ten-sg.com (205.147.40.34)
    Location: Lake Arrowhead, CA, USA
    Synchronization: NTP V4 secondary (Stratum 2), Linux/intel
    Service Area: within 100ms of Digilink.net
    Access Policy: open access, email for firewall access first
    Contact: carl@five-ten-sg.com
  113. US CO ntp1.linuxmedialabs.com
    Location: Linux Media Labs LLC, Colorado Springs, CO
    Service Area: US
    Synchronization: NTP Secondary (stratum 2), i686/Linux
    Access Policy: open access
    Contact: ntp@linuxmedialabs.com
    Note: ntp1 is an alias and the IP address may change, please use DNS
  114. US CO ntp1.tummy.com
    Location: tummy.com, ltd., Fort Collins, CO
    Service Area: US
    Synchronization: NTP Secondary (stratum 2), i686/Linux
    Access Policy: open access.
    Contact: ntp@tummy.com
    Note: ntp1 is an alias and the IP address may change, please use DNS.
  115. US DE louie.udel.edu (128.4.40.12)
    Location: University of Delaware, Newark, DE
    Synchronization: NTP V3 secondary (stratum 2), Sun SPARC10/Solaris 2.6
    Service Area: CAIRN, Abilene/vBNS
    Access Policy: open access
    Contact: Dave Mills <mills@udel.edu>
  116. US GA ntp.shorty.com (208.21.108.186)
    Location: CNSG, Atlanta, GA
    Synchronization: NTP secondary (stratum 2), PC/Linux
    Service Area: Southeast United States
    Access Policy: Open access, please send an email to notify before use.
    Contact: timelords@shorty.com
    Note: Please use the CNAME ntp. IP addresses can (and likely will) change.
  117. US GA rolex.usg.edu
    Location: University System of Georgia NOC, Atlanta, GA
    Synchronization: NTP secondary (stratum 2)
    Service Area: PeachNet (Georgia)
    Access Policy: open access, please send a message with the hostname and/or address of your NTP client to notify.
    Contact: timekeeper@usg.edu
  118. US GA timex.usg.edu
    Location: University System of Georgia NOC, Atlanta, GA
    Synchronization: NTP secondary (stratum 2)
    Service Area: PeachNet (Georgia)
    Access Policy: open access, please send a message with the hostname and/or address of your NTP client to notify.
    Contact: timekeeper@usg.edu
  119. US IL ntp-0.cso.uiuc.edu (130.126.24.53)
    Location: University of Illinois, Urbana-Champaign, IL
    Synchronization: NTP secondary (stratum 2), Cisco-ASM/4
    Service Area: CICNET, Midwest, NCSA region
    Access Policy: open access
    Contact: Charley Kline (kline@uiuc.edu)
    Note: select one of (ntp-0.cso.uiuc.edu, ntp-1.cso.uiuc.edu, ntp-2.cso.uiuc.edu) to equalize load. Use names rather than IP addresses if possible. The ntp-N aliases follow wherever the service is moved to.
  120. US IL ntp-1.cso.uiuc.edu (130.126.24.24)
    Location: University of Illinois, Urbana-Champaign, IL
    Synchronization: NTP secondary (stratum 2), Cisco-ASM/4
    Service Area: CICNET, Midwest, NCSA region
    Access Policy: open access
    Contact: Charley Kline (kline@uiuc.edu)
    Note: select one of (ntp-0.cso.uiuc.edu, ntp-1.cso.uiuc.edu, ntp-2.cso.uiuc.edu) to equalize load. Use names rather than IP addresses if possible. The ntp-N aliases follow wherever the service is moved to.
  121. US IL ntp-1.mcs.anl.gov (140.221.9.20)
    Location: Argonne National Laboratory, near Chicago, IL
    Synchronization: NTP V3 secondary (stratum 2), Sun Sparcstation
    Service Area: NSF/ANSNet, CICNet, NetIllinois, ESNet, others welcome
    Policy: open access, please send a message to notify
    Contact: Systems Staff (ntp-contact@mcs.anl.gov)
    Note: IP addresses are subject to change; please use DNS
  122. US IL ntp-2.cso.uiuc.edu (130.126.24.44)
    Location: University of Illinois, Urbana-Champaign, IL
    Synchronization: NTP secondary (stratum 2), Cisco-ASM/4
    Service Area: CICNET, Midwest, NCSA region
    Access Policy: open access
    Contact: Charley Kline (kline@uiuc.edu)
    Note: select one of (ntp-0.cso.uiuc.edu, ntp-1.cso.uiuc.edu, ntp-2.cso.uiuc.edu) to equalize load. Use names rather than IP addresses if possible. The ntp-N aliases follow wherever the service is moved to.
  123. US IL ntp-2.mcs.anl.gov (140.221.9.6)
    Location: Argonne National Laboratory, near Chicago, IL
    Synchronization: NTP secondary (stratum 2), Sun Sparcstation 2
    Service Area: NSF/ANSNet, CICNet, NetIllinois, ESNet, others welcome
    Access Policy: open access, please send a message to notify
    Contact: Systems Staff (ntp-contact@mcs.anl.gov)
    Note: IP addresses are subject to change; please use DNS
  124. US IN gilbreth.ecn.purdue.edu (128.46.129.93, 128.46.141.93, 128.46.147.93, 128.46.148.93, 128.46.171.93)
    Location: Purdue University Engineering Computer Network, West Lafayette, IN
    Synchronization: NTP V3 secondary (stratum 2), Sun SPARCserver 1000/Solaris 2.3
    Service area: NSFNET, CICNET area
    Access policy: open access
    Contact: Mike Moya (moyman@ecn.purdue.edu)
  125. US IN harbor.ecn.purdue.edu (128.46.128.76, 128.46.129.76, 128.46.154.76)
    Location: Purdue University Engineering Computer Network, West Lafayette, IN
    Synchronization: NTP V3 secondary (stratum 2), Sun-4/75+/Solaris 2.3
    Service area: NSFNET, CICNET area
    Access policy: open access
    Contact: Mike Moya (moyman@ecn.purdue.edu)
  126. US IN horologe.cerias.purdue.edu(128.10.252.1)
    Location: CERIAS, Purdue University, West Lafayette, IN
    Synchronization: NTP V3/V4 stratum 2 server, Cisco router
    Geographic Coordinates: 40:25:33.2N, 86:54:54.7W (GPS)
    Service Area: Purdue University hosts only
    Access Policy: open access to Purdue University addresses. Please see our ntp WWW page.
    Contact: Gene Spafford ( ntp-request@cerias.purdue.edu)
    Note: This host does not support "daytime" -- only UDP-based NTP.
  127. US IN molecule.ecn.purdue.edu (128.46.129.95, 128.46.132.95, 128.46.136.95, 128.46.145.95, 128.46.167.95, 128.46.169.95, 128.46.181.95)
    Location: Purdue University Engineering Computer Network, West Lafayette, IN
    Synchronization: NTP V3 secondary (stratum 2), Sun SPARCserver 1000/Solaris 2.3
    Service area: NSFNET, CICNET area
    Access policy: open access
    Contact: Mike Moya (moyman@ecn.purdue.edu)
  128. US IN tick.cerias.purdue.edu(128.10.252.9), tock.cerias.purdue.edu(128.10.252.10)
    Location: CERIAS, Purdue University, West Lafayette, IN
    Synchronization: NTP V3/V4 stratum 2 servers
    Geographic Coordinates: 40:25:33.2N, 86:54:54.7W (GPS)
    Service Area: Internet2, CIC and midwest US
    Access Policy: Open access but please see our ntp WWW page.
    Contact: Gene Spafford ( ntp-request@cerias.purdue.edu)
    Note: This host does not support "daytime" -- only UDP-based NTP.
  129. US KS ntp1.kansas.net (199.240.130.1)
    Location: KansasNet OnLine Services, Manhattan, KS
    Synchronization: NTP V3 secondary (stratum 2), Linux on Intel
    Service area: Central USA / Great Plains
    Access policy: open access to ntp1.kansas.net *or* ntp2.kansas.net; customers may use both servers.
    Contact: support@kansas.net
  130. US KS ntp2.kansas.net (199.240.130.12)
    Location: KansasNet OnLine Services, Manhattan, KS
    Synchronization: NTP V3 secondary (stratum 2), Linux on Intel
    Service area: Central USA / Great Plains
    Access policy: open access to ntp1.kansas.net *or* ntp2.kansas.net; customers may use both servers.
    Contact: support@kansas.net
  131. US MA ntp.ourconcord.net (216.204.156.2)
    Location: Concord, MA
    Synchronization: NTP v4 stratum 2, Linux
    Service Area: Eastern time zone
    Access Policy: open access
    Contact: Bruce Walker (timekeeper@quidnet.com)
  132. US MN ns.nts.umn.edu (128.101.101.101)
    Location: Minneapolis, MN
    Synchronization: NTP secondary (stratum 2), Sun/SunOS 4.1.3
    Service Area: CICNET region
    Access Policy: open access, please send a message to notify.
    Networking & Telecommunications Services (nts@nts.umn.edu)
    Note: select one of ns.nts.umn.edu or nss.nts.umn.edu to equalize load
  133. US MN nss.nts.umn.edu (134.84.84.84)
    Location: St Paul, MN
    Synchronization: NTP secondary (stratum 2), Sun/SunOS 4.1.3
    Service Area: CICNET region
    Access Policy: open access, please send a message to notify.
    Networking & Telecommunications Services (nts@nts.umn.edu)
    Note: select one of ns.nts.umn.edu or nss.nts.umn.edu to equalize load
  134. US MO time-ext.missouri.edu (NO IP LISTED)
    Location: University of Missouri-Columbia, Columbia, MO, USA
    Synchronization: NTP secondary (stratum 2), Linux/Intel
    Service Area: MOREnet
    Access Policy: open access, please send a message to notify
    Contact: time@missouri.edu
  135. US MT chronos1.umt.edu (192.73.48.1)
    Location: University of Montana, Missoula, Montana
    Synchronization: NTP secondary (stratum 2), Cisco 7507
    Service Area: Northwest USA, Internet 2
    Access Policy: open access, please send message to notify
    Contact: Michael Bloom (michaelb@selway.umt.edu)
    Note: IP addresses are subject to change; please use DNS if possible
  136. US MT chronos2.umt.edu (192.73.48.2)
    Location: University of Montana, Missoula, Montana
    Synchronization: NTP secondary (stratum 2), Cisco 7507
    Service Area: Northwest USA, Internet 2
    Access Policy: open access, please send message to notify
    Contact: Michael Bloom (michaelb@selway.umt.edu)
    Note: IP addresses are subject to change; please use DNS if possible
  137. US MT chronos3.umt.edu (192.73.48.6)
    Location: University of Montana, Missoula, Montana
    Synchronization: NTP secondary (stratum 2), Cisco 7507
    Service Area: Northwest USA, Internet 2
    Access Policy: open access, please send message to notify
    Contact: Michael Bloom (michaelb@selway.umt.edu)
    Note: IP addresses are subject to change; please use DNS if possible
  138. US NC clock1.unc.edu (152.2.21.1)
    Location: University of North Carolina-Chapel Hill, Chapel Hill, NC
    Geographic Coordinates: 35:54N, 79:03W
    Synchronization: NTP secondary (stratum 2), Sun4/SunOS/xntpd (V3)
    Service Area: CONCERT region
    Access Policy: CONCERT region, others by prior arrangement
    Contact: Timekeeper (timekeeper@clock1.unc.edu) NOTE: The default restriction on this host is "noserve". Hosts outside the service area must make prior arrangements to receive time service.
  139. US NH ntp.uhfradio.com (64.35.195.62)
    Location: Contoocook, NH
    Synchronization: NTP V4 primary (GPS)Garmin16, Win2k/tac
    Service Area: Eastern time zone
    Access policy: Open access
    Contact: admin@uhfradio.com
    Note: IP addresses are subject to change; please use hostname. Important: Access policies subject to change if server is overloaded or abused. more info http://ntp.uhfradio.com
    Contact: admin (admin@uhfradio.com)
  140. US NJ tick.jrc.us (65.211.109.1)
    Location: Jensen Research Corporation, Oakland NJ
    Geographic Coordinates: 41 00.975 N, 74 15.262 W
    Synchronization: NTP V3 secondary (stratum 2), Cisco 3620 IOS 12.2
    Service Area: Eastern US
    Access Policy: Open access; please send a message to notify.
    Contact: JRC Network Ops (noc@jensenresearch.com) 201 337-4000
    Note: IP addresses are subject to change; please use DNS.
  141. US NJ tock.jrc.us (65.211.109.11)
    Location: Jensen Research Corporation, Oakland NJ
    Geographic Coordinates: 41 00.975 N, 74 15.262 W
    Synchronization: NTP V4 secondary (stratum 2), Intel PIII/866 Win2K
    Service Area: Eastern US
    Access Policy: Open access; please send a message to notify.
    Contact: JRC Network Ops (noc@jensenresearch.com) 201 337-4000
    Note: IP addresses are subject to change; please use DNS.
  142. US NV cuckoo.nevada.edu (131.216.1.101)
    Location: University of Nevada System Computing Services, Las Vegas,NV
    Synchronization: NTP V3 secondary (stratum 2), DEC Alpha/Unix
    Service Area: NevadaNet, NSFNET, SDSC region
    Access Policy: open access, please send message to notify
    Contact: Systems Group (software@nevada.edu)
    Note: cuckoo.nevada.edu is a CNAME for alphabits.nevada.edu
  143. US NV tick.cs.unlv.edu (131.216.22.15)
    Location: UNLV College of Engineering, Las Vegas, NV
    Synchronization: NTP V4 secondary (stratum 2), Solaris
    Service Area: Sprintnet
    Access Policy: open access, an email note is appreciated
    Contact: <grayaw@egr.unlv.edu>
    Note: select one of tick.cs.unlv.edu or tock.cs.unlv.edu at random to equalize load
  144. US NV tock.cs.unlv.edu (131.216.22.17)
    Location: UNLV College of Engineering, Las Vegas, NV
    Synchronization: NTP V4 secondary (stratum 2), Mips/Unix
    Service Area: Sprintnet
    Access Policy: open access, an email note is appreciated
    Contact: <grayaw@egr.unlv.edu>
    Note: select one of tick.cs.unlv.edu or tock.cs.unlv.edu at random to equalize load
  145. US NY clock.linuxshell.net (64.243.118.2)
    Location: LinuxShell Hosting, New York, NY, US.
    Synchronization: NTP V3 secondary (stratum 2), PC/Linux
    Service Area: Eastern US
    Access Policy: Open access.
    Contact: Chris Crowther (timekeeper@linuxshell.net)
    Note: clock.linuxshell.net is a CNAME, please use as DNS may change.
  146. US NY clock.nyc.he.net (209.51.161.238)
    Location: Hurricane Electric, New York City, New York
    Synchronization: NTP V4 primary (CMDA), Endrun Praecis CNTP
    Service Area: all areas
    Access Policy: open access
    Contact: support@he.net
  147. US NY ntp0.cornell.edu
    Location: Cornell University, Ithaca, NY
    Synchronization: NTP secondary (stratum 2), Sun/Unix
    Service Area: NYSERNet, NYSERNet 2000, Internet2/Abilene, vBNS
    Access Policy: open access
    Contact: Dan Eckstrom (de10@cornell.edu)
    Note: IP addresses are subject to change; please use DNS.
    Note: Open access for clients, though an email is appreciated (especially if peering).
  148. US NY reva.sixgirls.org (66.250.131.180)
    Location: The NYITC Building, 55 Broad Street, New York City, NY
    Geographic Coordinates: 40:42:20N, 74:0:40W
    Synchronization: NTP V4 secondary (stratum 2), m68k/NetBSD
    Service Area: New York, New Jersey, Connecticut, Long Island areas
    Access Policy: open access
    Contact: John Klos (john@sixgirls.org)
  149. US NY sundial.columbia.edu (128.59.59.177)
    Location: Morningside Campus, Columbia University, New York, NY
    Synchronization: NTP V3 secondary (stratum 2), Sun Sparc10 model 40
    Service Area: NYSERnet
    Access Policy: open access; please use name rather than address.
    Contact: timekeeper@columbia.edu
  150. US NY timex.cs.columbia.edu (128.59.16.20)
    Location: Columbia University Computer Science Department, New York City, NY
    Synchronization: NTP secondary (stratum 2), Sun/Unix
    Service Area: PSINET; NSFNET, NYSER region
    Access Policy: open access, authenticated NTP (DES/MD5) available
    Contact: James Tanis (timekeeper@cs.columbia.edu)
    Note: IP addresses are subject to change; please use DNS
  151. US PA clock-1.cs.cmu.edu (128.2.250.95)
    Location: Carnegie Mellon University Computer Science, Pittsburgh, PA
    Synchronization: NTP V3 secondary (stratum 2), Sun Sparc/Solaris 2.5.1
    Service Area: PSC region
    Access Policy: semi-open access; for use only by prior arrangement
    Contact: Help@cs.cmu.edu
    Note: The host name is an alias used only for time service.
  152. US PA clock-2.cs.cmu.edu (128.2.222.8)
    Location: Carnegie Mellon University Computer Science, Pittsburgh, PA
    Synchronization: NTP V3 secondary (stratum 2), Sun Sparc/SunOS 4.1.4
    Service Area: PSC region
    Access Policy: semi-open access; for use only by prior arrangement
    Contact: Help@cs.cmu.edu
    Note: The host name is an alias used only for time service.
  153. US PA clock.psu.edu (128.118.25.3)
    Location: Penn State University, University Park, PA
    Geographic Coordinates: 40:47:58.1N, 77:51:44.8W (USGS 40077-G7-TF-024)
    Synchronization: NTP V3 secondary (stratum 2), Sun/Unix
    Service Area: Internet2, vBNS, CERFnet(AT & T IP Services), PSC/NCNE, CASC.
    Access Policy: open access
    Contact: John Balogh <JDB@psu.edu>
    Note: clock.psu.edu is a CNAME for otc2.psu.edu
  154. US PA fuzz.psc.edu (128.182.58.100)
    Location: Pittsburgh Supercomputing Center, Pittsburgh, PA
    Synchronization: NTP V3 secondary (stratum 2), DEC5000/200
    Service area: NSFNET, PSC region
    Access policy: open access, but please send a message to notify.
    Contact: noc@psc.edu
  155. US PA ntp-1.cede.psu.edu (146.186.218.60)
    Location: Penn State University, University Park, PA
    Synchronization: NTP V4 secondary (stratum 2), IBM RS/6000-B50, Debian GNU Linux
    Service Area: Internet2, vBNS, CERFnet, PSC/NCNE
    Access Policy: open access, please send a message to notify
    Contact: timekeeper@cede.psu.edu
    Note: IP addresses are subject to change; please use DNS
  156. US PA ntp-2.cede.psu.edu (146.186.218.253)
    Location: Penn State University, University Park, PA
    Synchronization: NTP V4 secondary (stratum 2), i686, Debian GNU Linux
    Service Area: Internet2, vBNS, CERFnet, PSC/NCNE
    Access Policy: open access, please send a message to notify
    Contact: timekeeper@cede.psu.edu
    Note: IP addresses are subject to change; please use DNS
  157. US PA ntp-1.ece.cmu.edu (no address, please use DNS)
    Location: Carnegie Mellon Electrical and Computer Engineering, Pittsburgh, PA
    Geographic Coordinates: 40:26N, 79:57W
    Synchronization: NTP V3 secondary (stratum 2), Solaris 9
    Service Area: PREPNET, PSC region
    Access Policy: open access
    Contact: ECE Facilities (gripe@ece.cmu.edu)
    Note: Name is an alias for use by NTP.
  158. US PA ntp-2.ece.cmu.edu (no address, please use DNS)
    Location: Carnegie Mellon Electrical and Computer Engineering, Pittsburgh, PA
    Geographic Coordinates: 40:26N, 79:57W
    Synchronization: NTP V3 secondary (stratum 2), Solaris 9
    Service Area: PREPNET, PSC region
    Access Policy: open access
    Contact: ECE Facilities (gripe@ece.cmu.edu)
    Note: Name is an alias for use by NTP.
  159. US TX ntp.cox.smu.edu (129.119.80.126)
    Location: Cox School of Business, Southern Methodist University, Dallas, TX
    Synchronization: NTP V3 secondary (stratum 2), DEC 3000/300LX AXP DEC OSF/1 AXP
    Service Area: NSFNET, SESQUI region
    Access Policy: open access
    Contact: Allen Gwinn (allen@mail.cox.smu.edu)
    Note: Please send e-mail letting us know you will be using ntp.cox.smu.edu. ntp.cox.smu.edu is a CNAME for nyse.cox.smu.edu.
  160. US TX ntp.fnbhs.com (209.144.20.76)
    Location: First National Bank of Hughes Springs, TX
    Synchronization: NTP secondary (stratum 2), Debian Linux 2.1
    Service area: Northeast Texas
    Access policy: open access, please send a message to notify
    Contact: walterp@fnbhs.com
  161. US TX ntp.tmc.edu (128.249.1.10)
    Location: US TX ntp.tmc.edu (128.249.1.10)
    Location: Baylor College of Medicine, Houston, TX
    Synchronization: NTP secondary (stratum 2), Sun/Solaris
    Service Area: NSFNET, SESQUI region
    Access Policy: open access to other stratum 2 servers and upstream for statum 3 servers;not to be used for individual servers;please notify before use
    Contact: Postmaster (postmaster@tmc.edu)
  162. US TX ntppub.tamu.edu (no address available)
    Location: Texas A&M University, College Station, TX
    Synchronization: NTP secondary (stratum 2, ver. 3), SPARCstation 10/Solaris 1.x
    Service area: NSFNET, SESQUI region, THEnet, TAMUSDSN
    Access policy: open access
    Contact: NTP Administrator (ntp@tamu.edu)
  163. US TX tick.greyware.com (207.55.146.19)
    Location: Greyware Automation Products, Plano, TX
    Synchronization: NTP secondary (stratum 2), Windows NT
    Service Area: South-Central US, others by arrangement
    Access Policy: open access for any server with 50+ clients
    Contact: techsupport@greyware.com
    Note: IP may change, please use DNS name. Other protocols offered include TIME-UDP, TIME-TCP, and Domain Time II
  164. US TX tock.greyware.com (207.55.146.54)
    Location: Greyware Automation Products, Plano, TX
    Synchronization: NTP secondary (stratum 2), Windows NT
    Service Area: South-Central US, others by arrangement
    Access Policy: open access for any server with 50+ clients
    Contact: techsupport@greyware.com
    Note: IP may change, please use DNS name. Other protocols offered include TIME-UDP, TIME-TCP, and Domain Time II
  165. US VA ntp-1.vt.edu (198.82.1.201)
    Location: Virginia Tech, Blacksburg, Virginia, USA
    Synchronization: V3 Stratum 2 synced to local GPS primary servers
    Service Area: US southeastern region, Abilene
    Access Policy: open access
    Info: Communications Network Services
    Contact: ntp@cns.vt.edu
  166. US VA ntp-2.vt.edu (198.82.1.202)
    Location: Virginia Tech, Blacksburg, Virginia, USA
    Synchronization: V3 Stratum 2 synced to local GPS primary servers
    Service Area: US southeastern region, Abilene
    Access Policy: open access
    Info: Communications Network Services
    Contact: ntp@cns.vt.edu
  167. US VA ntp-3.vt.edu (198.82.1.203)
    Location: Virginia Tech, Blacksburg, Virginia, USA
    Synchronization: V3 Stratum 2 synced to local GPS primary servers
    Service Area: US southeastern region, Abilene
    Access Policy: open access
    Info: Communications Network Services
    Contact: ntp@cns.vt.edu
  168. US VA ntp-4.vt.edu (198.82.1.204)
    Location: Virginia Tech, Blacksburg, Virginia, USA
    Synchronization: V3 Stratum 2 synced to local GPS primary servers
    Service Area: US southeastern region, Abilene
    Access Policy: open access
    Info: Communications Network Services
    Contact: ntp@cns.vt.edu
  169. US VT ntp0.state.vt.us (159.105.23.194)
    Location: Vermont Agency of Administration, Montpelier
    Synchronization: NTP V3 secondary (stratum 2), IBM RS/6000 AIX 4.3.3
    Service Area: Vermont
    Access Policy: semi-open access; for use by any Govnet/K12net/VALS clients (159.105/16 & 170.222/16 prefixes)
    Contact: <info@govnet.state.vt.us>
    Note: The host name is an alias used only for time service.
  170. US VT ntp1.state.vt.us (159.105.23.130)
    Location: Vermont Agency of Administration, Montpelier
    Synchronization: NTP V3 secondary (stratum 2), IBM RS/6000 AIX 4.3.3
    Service Area: Vermont
    Access Policy: semi-open access; for use by any Govnet/K12net/VALS clients (159.105/16 & 170.222/16 prefixes)
    Contact: <info@govnet.state.vt.us>
    Note: The host name is an alias used only for time service.
  171. US VT ntp2.state.vt.us (170.222.64.130)
    Location: Vermont Agency of Administration, Montpelier
    Synchronization: NTP V3 secondary (stratum 2), IBM RS/6000 AIX 4.3.3
    Service Area: Vermont
    Access Policy: semi-open access; for use by any Govnet/K12net/VALS clients (159.105/16 & 170.222/16 prefixes)
    Contact: <info@govnet.state.vt.us>
    Note: The host name is an alias used only for time service.
  172. US WA [UltiMeth Systems]
    Location: Mill Creek (30km N of Seattle), Washington, USA
    Geographic Coordinates: 47:51:40.7N 122:11:23.5W
    Synchronization: NTP v4 stratum-2
    Service Area: Northwestern USA.
    Access Policy: Prior permission is now required, due to bozos.
    Contact: See our time server usage notes.
  173. US WI ntp1.cs.wisc.edu (128.105.39.11)
    Location: Computer Science Department, University of Wisconsin-Madison
    Geographic Coordinates: 89:24:30W, 43:08:00N
    Synchronization: NTP V4 secondary Solaris 2.7
    Service Area: US/any
    Access Policy: open access
    Contact: David Thompson ( ntp-admin@cs.wisc.edu)
  174. Note: IP addresses are subject to change; please use DNS
  175. US WI ntp3.cs.wisc.edu (128.105.37.11)
    Location: Computer Science Department, University of Wisconsin-Madison
    Geographic Coordinates: 89:24:30W, 43:08:00N
    Synchronization: NTP V4 secondary Solaris 2.7
    Service Area: US/any
    Access Policy: open access
    Contact: David Thompson ( ntp-admin@cs.wisc.edu)
    Note: IP addresses are subject to change; please use DNS
  176. US WI ntp3.sf-bay.org (207.126.97.57)
    Location: Milwaukee, WI
    Synchronization: NTP secondary (stratum 2), FreeBSD
    Service Area: North America: Central Time Zone
    Access Policy: open access, please send a message to notify
    Contact: Scott Hazen Mueller (clockmaster@sf-bay.org)
  177. VE ntp.linux.org.ve (150.188.8.196)
    Localizaci: VELUG, Grupo de Usuarios Linux de Venezuela
    Sincronizaci: NTP secundario (stratum 2), Pentium/Linux
    Area de Servicio: Arica
    Potica de Acceso: Abierta, por favor enviar e-mail para notificar
    Contacto: time@linux.org.ve
  178. ZA ntp.cs.unp.ac.za (143.128.82.200)
    Location: Natal University, Pietermaritzburg, South Africa
    Synchronization: NTP V3 secondary (stratum 2), SGI Indy/Irix6.2
    Service area: South Africa
    Access policy: open access, please send a message to notify
    Contact: sysadmin@cs.unp.ac.za
  179. ZA tock.nml.csir.co.za (146.64.241.229)
    Location: Pretoria, South Africa
    Geographic Coordinates: 25,7461 S 28,2770 E (WGS-84)
    Service Area: Southern Africa
    Synchronization: NTP secondary (stratum 2), i386/FreeBSD
    Access Policy: open access
    Contact: elmarais@csir.co.za

Discontinued Service

allison.radiks.net
bernina.ethz.ch
black-ice.cc.vt.edu
calvus.rzs-hm.si
chime.utoronto.ca
chime1.surfnet.nl
chrivh40.cch.com (198.147.37.140)
churchy.udel.edu
clock.netcetera.dk
clock2.netcetera.dk
clock.tricity.wsu.edu
constellation.ecn.uoknor.edu
delphi.cs.ucla.edu
dominator.eecs.harvard.edu
eagle.tamu.edu
finch.cc.ukans.edu
fuzz.sura.net
gazette.bcm.tmc.edu
hmljhp.rzs-hm.si
kuhub.cc.ukans.edu
lassen.slc.ca.gov
libra.rice.edu
ntp.adelaide.edu.au
ntp.botbay.net
ntp.ctr.columbia.edu
ntp.landau.ac.ru
ntp.olivetti.com
ntp.pop-df.rnp.br
ntp.terabyte.com.uabr
ntp.to.themasses.org
ntp.waikato.ac.nz
ntp1.mpis.net
ntp2.mpis.net
ntp1.ossi.com
ntp1.sura.net
ntp2.ossi.com
ntp2.sura.net
salmon.maths.tcd.ie
smart1.svi.org
tick.anice.net.ar
tick.koalas.com
ticktock.wang.com
ntp.cmr.gov
time.deakin.edu.au
time.esec.com.au
time.nuri.net
time.software.net
tmc.edu
tock.anice.net.ar
truechimer.waikato.ac.nz
vtserf.cc.vt.edu
wuarchive.wustl.edu
www1.cmc.ec.gc.ca
www2.cmc.ec.gc.ca
xfiles-jr.esa.lanl.gov
xfiles.esa.lanl.gov