r15 - 2013-04-11 - 21:12:10 - SteveKosteckeYou are here: NTP >  Servers Web > StratumOneTimeServers
NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.

ntp-4.2.8p15 was released on 23 June 2020. It addresses 1 medium-severity security issue in ntpd, and provides 13 non-security bugfixes over 4.2.8p13.

Please see the NTP Security Notice for vulnerability and mitigation details.

Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.

Stratum One Time Servers

ALERT! Please read the Rules Of Engagement before using these lists. These lists are updated frequently and should not be cached.

newtopic Read ManagingYourListEntries and then

Click the ISO Country Code to view complete details about a server. See InactiveTimeServers for previously listed servers that are no longer in service.

ISO: Location: Host / Sponsor: Service Area: Access Policy: Notify? LastModified:
AE Business Central Tower, Dubai, UAE RNTrust (RecroNet Middle East) UAE, Saudi Arabia & EMEA OpenAccess Yes 2019-04-29T08:32:03Z
AE Business Central Tower, Dubai. UAE RNTrust (RecroNet Middle East) UAE, Saudi Arabia & EMEA OpenAccess Yes 2019-04-28T09:29:40Z
AM AMNIC DC, Yerevan, Armenia Internet Society of Armenia, AM NIC worldwide OpenAccess No 2015-01-29T23:31:16Z
AM AMNIC DC, Yerevan, Armenia Internet Society of Armenia, AM NIC worldwide OpenAccess No 2014-10-08T07:56:13Z
AM AMNIC DC, Yerevan, Armenia   worldwide OpenAccess No 2013-04-01T21:48:39Z
AT Vienna   aco.net, VIX customers, Austrian Internet users OpenAccess No 2009-07-17T11:01:08Z
AT Hallein   Austria/Europe OpenAccess No 2019-12-20T19:50:17Z
AT InterXion, 1210 Vienna   aco.net, VIX customers, Austrian Internet users OpenAccess No 2019-12-20T19:11:42Z
AU Gladstone, QLD, Australia QLD VoIP Services Global OpenAccess No 2020-01-01T15:06:12Z
AU Brisbane   Australia ClosedAccess Yes 2012-09-27T03:21:36Z
AU Melbourne   Australia ClosedAccess Yes 2013-04-11T22:44:12Z
AU Sydney   Australia ClosedAccess Yes 2012-09-27T03:22:38Z
AU Perth   Australia ClosedAccess Yes 2012-09-27T03:20:41Z
BE Leuven, Belgium Unix-Solutions BVBA Europe RestrictedAccess Yes 2020-09-16T11:11:06Z
BE Hoboken, Antwerp, Belgium Antwerp Space Europe OpenAccess No 2019-12-10T17:05:35Z
BE Royal Observatory of Belgium   all areas OpenAccess No 2006-03-16T11:06:27Z
BE Heppen - Belgium ON5HB Websdr-server Belgium RestrictedAccess Yes 2020-03-04T10:46:52Z
BE Zaventem, Belgium Unix-Solutions BVBA Europe RestrictedAccess Yes 2020-09-16T11:12:01Z
BE Royal Observatory of Belgium   all areas OpenAccess No 2006-03-16T11:08:00Z
BG Svilengrad, Bulgaria   Worldwide OpenAccess No 2018-06-04T05:14:54Z
BG Sofia, Bulgaria   Bulgaria, Europe OpenAccess No 2019-12-20T19:22:21Z
BR São Carlos, São Paulo, Brasil Instituto de Física de Sâo Carlos (USP) Worldwide OpenAccess Yes 2019-12-18T20:26:21Z
BR São Paulo, Brazil   Brazil OpenAccess No 2019-12-20T19:29:03Z
BR Brazil   Brazil OpenAccess No 2013-02-18T20:48:40Z
BR Rio de Janeiro, Brazil   Brazil OpenAccess No 2013-02-18T20:49:18Z
BR Laboratory for the Processing of Analog and Digital Signals (PADS), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil PADS/PEE - COPPE - UFRJ Brazil, Latin America and Caribbean OpenAccess No 2019-02-07T19:49:38Z
BR Rio de Janeiro, Brazil   Brazil OpenAccess No 2013-02-18T20:48:58Z
BR Laboratory for the Processing of Analog and Digital Signals (PADS), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil PADS/PEE - COPPE - UFRJ Brazil, Latin America and Caribbean OpenAccess No 2019-02-08T01:15:18Z
BR Brasília, Brasil   Brazil OpenAccess No 2011-03-11T18:29:38Z
CA Regina, Saskatchewan, Canada   Worldwide OpenAccess No 2019-11-03T02:09:49Z
CA University oc Saskatchewan, Saskatoon, Saskatchewan, SK, Canada   SASK#net, CA*net, Canada OpenAccess Yes 2017-06-08T14:36:55Z
CA Toronto, Ontario, Canada Toronto Internet Exchange Worldwide OpenAccess No 2019-06-27T09:35:40Z
CA Saskatoon, Saskatchewan, Canada NYY North America OpenAccess Yes 2019-07-26T16:44:29Z
CA Vancouver, British Columbia, Canada   Western Canada, northwest USA RestrictedAccess Yes 2007-02-14T13:48:03Z
CA University of Regina, Regina, Saskatchewan, Canada   SASK#net, CA*net, Canada RestrictedAccess Yes 2004-09-25T02:40:20Z
CA Victoria, BC, Canada   Worldwide OpenAccess No 2020-02-20T08:40:19Z
CA Toronto, Ontario, Canada Toronto Internet Exchange Worldwide OpenAccess No 2019-06-27T09:36:26Z
CA Regina, Saskatchewan, Canada ZAF North America OpenAccess Yes 2019-07-25T23:36:38Z
CA Toronto, Ontario, Canada Toronto Internet Exchange Worldwide OpenAccess No 2019-06-27T09:36:59Z
CA University of Saskatchewan, Saskatoon, Saskatchewan, SK, Canada   SASK#net, CA*net, Canada OpenAccess Yes 2017-06-07T19:15:27Z
CH Zug, Switzerland   Europe OpenAccess Yes 2012-06-18T16:07:02Z
CH Bülach/Zürich Freestone Systems Europe OpenAccess Yes 2013-12-26T20:34:04Z
CH Zug, Switzerland   Europe OpenAccess Yes 2012-06-18T16:02:43Z
CHE Geneva Infomaniak Network SA Europe OpenAccess Yes 2019-06-26T07:41:56Z
CHE Geneva Infomaniak Network SA Europe OpenAccess Yes 2019-06-26T07:41:03Z
CL Servicio Hidrografico y Oceanografico de la Armada de Chile   Chile OpenAccess Yes 2004-09-25T02:54:33Z
CN Qingdao, China   Asia, China, anywhere OpenAccess Yes 2019-12-20T20:23:58Z
CN Northeastern University, Shenyang, Liaoning, China NEU China OpenAccess Yes 2013-08-08T02:08:59Z
CR Laboratorio Metrológico de Varialbles Eléctricas, SJO Costa Rica ICE Worldwide OpenAccess Yes 2017-05-29T17:55:50Z
CZ [[http://www.cesnet.cz/english][CESNET]Prague, The Czech Republic   Czech Republic and Slovakia, European academic community RestrictedAccess Yes 2019-12-20T15:40:53Z
CZ CZ.NIC, z.s.p.o., Americka 23, Prague CZ.NIC, z.s.p.o. Czech Republic OpenAccess No 2014-09-18T15:36:49Z
CZ UFE Prague, The Czech Republic     OpenAccess Yes 2013-01-18T16:18:48Z
CZE https://support.ntp.org/   security@ntp.org OpenAccess Yes 2020-07-01T00:57:15Z
DE Hubert Niewels GmbH , Bad Lippspringe, Germany Hubert Niewels GmbH (https://niewels.de) Europe OpenAccess Yes 2020-06-23T09:28:03Z
DE Hannover, Niedersachsen, Germany BCS2005.net Germany OpenAccess No 2016-11-17T06:17:13Z
DE Technische Universitaet Berlin, D-10587 Berlin, FRG   Germany/Europe OpenAccess No 2019-12-20T22:48:15Z
DE Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany   Germany/Europe, others by arrangement OpenAccess Yes 2019-12-20T22:50:00Z
DE Düsseldorf, Germany UIT Services GmbH Germany OpenAccess Yes 2020-01-11T00:00:02Z
DE University Erlangen-Nuernberg, D-91058 Erlangen, FRG   Germany/Europe OpenAccess No 2019-12-20T22:48:54Z
DE Freie Universität Berlin, Zentraleinrichtung für Datenverarbeitung (ZEDAT), Germany   Germany/Europe OpenAccess No 2013-06-12T19:28:15Z
DE DL8OBH, Ilsede nr. Hanover time.dk0mav.as64643.de.ampr.org HAMNet / Europe OpenAccess Yes 2015-01-23T13:12:23Z
DE Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany   Germany/Europe, others by arrangement OpenAccess Yes 2007-01-11T18:32:55Z
DE University Erlangen-Nuernberg, D-91058 Erlangen, FRG   Germany/Europe OpenAccess No 2019-12-20T22:48:41Z
DE Computer Center University of Stuttgart, D-70550 Stuttgart, Germany   Germany/Europe OpenAccess Yes 2019-12-20T23:00:41Z
DE Mainz, Germany   Networks BGP-announced on the rlp-Netz and the X-WiN RestrictedAccess No 2012-11-30T09:15:29Z
DE Baden-Württemberg   global OpenAccess Yes 2020-02-02T12:27:38Z
DE Technische Universitaet Berlin, D-10587 Berlin, FRG   Germany/Europe OpenAccess No 2016-02-10T07:05:35Z
DE University Erlangen-Nuernberg, D-91058 Erlangen, FRG   Germany/Europe OpenAccess No 2019-12-20T22:48:24Z
DE Passau   1 ClosedAccess Yes 2017-06-03T17:41:59Z
DE Nürnberg, Germany   Europe OpenAccess Yes 2020-09-07T22:43:22Z
DE University Erlangen-Nuernberg, D-91058 Erlangen, FRG   Germany/Europe OpenAccess No 2019-12-20T22:49:15Z
DE Freie Universität Berlin, Zentraleinrichtung für Datenverarbeitung (ZEDAT), Germany   Germany/Europe OpenAccess No 2013-06-12T19:30:14Z
DK Kokkedal, Denmark Algon IVS Denmark / Europe OpenAccess Yes 2017-05-03T21:33:46Z
DK Lyngby, Denmark   Networks BGP-announced on the DIX RestrictedAccess No 2004-09-25T14:25:19Z
DK Holbaek, Denmark ITCompliance.dk (NTP2) World OpenAccess Yes 2019-07-05T12:18:54Z
DK Gladsaxe, Denmark RXTX DK Europe OpenAccess No 2020-06-04T06:43:02Z
DK Holbaek, Denmark ITCompliance.dk (NTP1) World OpenAccess Yes 2019-07-05T12:22:21Z
DK Aabenraa, Denmark   Europe OpenAccess Yes 2020-04-06T21:54:30Z
DK Sonnerup, Denmark SonnIT / SonnMedia Denmark/Europe RestrictedAccess Yes 2019-12-10T20:19:16Z
DK Vestbjerg, Denmark   Global OpenAccess Yes 2020-07-23T13:04:36Z
DK Aarhus, Denmark   Denmark / Europe RestrictedAccess No 2019-08-15T14:05:02Z
EE Tallinn, Estonia   worldwide OpenAccess Yes 2013-07-26T21:14:26Z
EE Tallinn, Estonia   worldwide OpenAccess Yes 2013-07-26T21:14:42Z
ES San Fernando, Cadiz, España Real Instituto y Observatorio de la Armada Worldwide OpenAccess Yes 2019-06-18T07:06:27Z
ES Laboratory of I2T Research Group, Faculty of Engineering, University of the Basque Country UPV/EHU, Bilbao, Basque Country, Spain. I2T Research Group Internet OpenAccess No 2015-06-12T14:26:53Z
ES San Fernando, Cadiz, España Real Instituto y Observatorio de la Armada (ROA) Worldwide OpenAccess Yes 2019-06-18T11:33:02Z
FR BESANCON   Worldwide OpenAccess No 2020-10-21T14:38:14Z
FR SYRTE, Observatoire de Paris, Paris, France   France/Europe ClosedAccess Yes 2016-01-28T16:15:57Z
FR NIT, Droue sur Drouette, Centre Val de Loire, France Néel Institute of Technology France, Europe OpenAccess Yes 2020-05-18T05:06:37Z
FR INRIA, Sophia Antipolis (French Riviera, near Nice), France   RENATER, R3T2, France/Europe RestrictedAccess No 2016-05-14T08:50:19Z
GB Welshpool Speed Welshpool Ltd UK / Europe OpenAccess Yes 2017-11-12T12:49:31Z
GB Suffolk, United Kingdom University of Suffolk Europe OpenAccess No 2018-01-10T12:07:41Z
GR Athens, Greece ASDA Worldwide OpenAccess No 2020-10-09T01:27:20Z
HK Hong Kong   Hong Kong OpenAccess No 2019-12-20T19:42:44Z
HK Hong Kong   Hong Kong OpenAccess No 2019-12-20T23:17:17Z
HR Zagreb, Croatia LDM/REM Lab - Remote Metrology Laboratory, University of Zagreb, Faculty of Electrical Engineering and Computing Croatia, Europe OpenAccess Yes 2020-07-30T16:20:34Z
HR Zagreb, Croatia LDM/REM Lab - Remote Metrology Laboratory, University of Zagreb, Faculty of Electrical Engineering and Computing Croatia, Europe OpenAccess Yes 2020-05-21T15:30:44Z
HU Europe, Hungary, Szekszard   Hungary OpenAccess No 2018-06-10T22:24:57Z
ID Jakarta   Indonesia RestrictedAccess Yes 2017-06-03T21:27:39Z
ID Jakarta PT. Axarva Media Teknologi Jakarta, Indonesia RestrictedAccess Yes 2019-12-20T21:51:40Z
IE Dublin Doran, Hahn & Co. As network paths make it sensible to use RestrictedAccess Yes 2016-08-25T08:27:27Z
IE Dept. of Information Technology, National University of Ireland, Galway, Ireland   Ireland, UK OpenAccess Yes 2004-09-25T14:41:50Z
IE Rosslare Strand   Ireland OpenAccess Yes 2019-12-20T19:52:03Z
IN NPL, New Delhi, India National Physical Laboratory, India India & Worldwide OpenAccess Yes 2020-07-15T06:43:50Z
IS Iceland   Iceland RestrictedAccess No 2019-12-20T19:51:00Z
IT Legnano, Milan, Italy   Italy OpenAccess No 2020-08-20T22:47:53Z
IT I.N.RI.M. - Torino, Italy   Italy/Europe OpenAccess Yes 2019-12-20T23:27:52Z
IT INRI.M.-Torino, Italia   Italia/Europa OpenAccess Yes 2019-12-20T20:31:09Z
IT I.N.RI.M. - Torino, Italy   Italy/Europe OpenAccess Yes 2007-01-24T15:00:30Z
IT Bibbiena, Arezzo, Italy Simone Martini Italy OpenAccess Yes 2020-09-02T14:04:40Z
IT Lamezia Terme - Italy   Italy/Europe OpenAccess Yes 2019-12-20T22:01:48Z
IT Legnano, Milan, Italy   Italy OpenAccess Yes 2020-08-20T22:51:31Z
JP National Institute of Information and Communications Technology (Tokyo, JAPAN)   Japan and Asia OpenAccess Yes 2019-12-20T18:52:56Z
JP National Institute of Information and Communications Technology (Tokyo, JAPAN)   Japan and Asia OpenAccess No 2019-12-20T23:28:27Z
KZ Semey, Kazakhstan KazNIC Organization Kazakhstan OpenAccess Yes 2019-12-20T21:25:33Z
KZ Semey/VKO KazNIC Organization Europe, Asia OpenAccess Yes 2019-03-19T09:02:28Z
LT Vilnius laukas.lt Lithuania/Europe OpenAccess Yes 2018-04-30T14:46:18Z
MX Mexico City   Worldwide OpenAccess Yes 2019-02-23T15:34:47Z
MX Dirección de Planeación Institucional, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, México Universidad Michoacana de San Nicolás de Hidalgo Mexico, North America, Latin America and Caribbean OpenAccess Yes 2019-04-11T06:53:03Z
MX Mexico City   Worldwide OpenAccess Yes 2019-02-23T15:34:23Z
NL Verizon, Rotterdam, The Netherlands   The Netherlands/Europe OpenAccess No 2019-12-20T23:01:06Z
NL Verizon, Amsterdam, The Netherlands   The Netherlands/Europe OpenAccess No 2017-06-26T13:23:11Z
NL Marken, Netherlands Harm ten Napel The Netherlands/Europe RestrictedAccess Yes 2019-03-30T13:15:28Z
NL Noordwijk, the Netherlands European Space Agency Central Europe OpenAccess Yes 2020-08-04T19:54:15Z
NL Nijmegen, Gelderland, The Netherlands   Europe OpenAccess No 2016-06-10T07:41:52Z
NL Arnhem, the Netherlands SIDN Netherlands (NL) and surrounding countries (EU) OpenAccess No 2019-07-19T07:20:55Z
NO Lindesnes PrePro AS Norway RestrictedAccess No 2020-04-20T23:42:14Z
NO The EDB Centre, University of Tromsoe, Norway   NORDUnet RestrictedAccess Yes 2004-09-25T15:04:14Z
NO IT-Dept., University of Tromso, Norway   NORDUnet ClosedAccess Yes 2007-03-02T09:47:49Z
NZ Christchurch, New Zealand NZRS Ltd New Zealand and Pacific Islands RestrictedAccess No 2017-12-19T00:32:58Z
NZ Wellington, New Zealand   New Zealand OpenAccess No 2020-02-19T23:34:58Z
NZ Wellington, New Zealand NZRS Ltd New Zealand and Pacific Islands RestrictedAccess No 2017-12-19T00:32:37Z
NZ Auckland, New Zealand NZRS Ltd New Zealand and Pacific Islands RestrictedAccess No 2017-12-19T00:27:45Z
NZ Auckland, New Zealand NZRS Ltd New Zealand and Pacific Islands RestrictedAccess No 2017-12-19T00:32:11Z
PL Krakow/Poland   rflab.pl OpenAccess Yes 2019-12-20T22:05:52Z
PL Warsaw, Poland   Public OpenAccess No 2009-02-03T20:28:25Z
PL Unizeto Technologies S.A., ul. Krolowej Korony Polskiej 21, 70-486 Szczecin, Polska   Internet OpenAccess No 2019-12-20T23:01:40Z
PL Krakow, Poland   Public OpenAccess Yes 2019-12-20T22:17:00Z
PL Warsaw, Poland   Public OpenAccess No 2019-12-20T18:50:47Z
PL Krakow, Poland rflab.pl Public OpenAccess Yes 2018-07-25T21:20:48Z
PL Torun, Poland KL FAMO, Institute of Physics, UMK Poland/Europe OpenAccess No 2015-03-31T08:52:58Z
RO EMCLab.ro - Electromagnetic Compatibility Laboratory, Suceava, 720229, Romania Stefan cel Mare University of Suceava Worldwide ClosedAccess Yes 2019-12-08T10:18:31Z
RO EMCLab.ro - Electromagnetic Compatibility Laboratory, Suceava, 720229, Romania Stefan cel Mare University of Suceava Worldwide ClosedAccess Yes 2019-12-08T10:19:49Z
RO EMCLab.ro - Electromagnetic Compatibility Laboratory, Suceava, 720229, Romania Stefan cel Mare University of Suceava Worldwide ClosedAccess Yes 2019-12-08T10:20:21Z
RO Suceava, 720236, Romania   Romania/Europe RestrictedAccess Yes 2008-06-25T19:58:15Z
RU Saratov Information Networks Ltd. All areas OpenAccess Yes 2018-07-24T15:13:56Z
RU VNIIFTRI, Moscow region, Russia   All areas OpenAccess Yes 2013-04-15T09:59:29Z
RU Stavropol region, Russia TeleMedicine System Russia/Europe OpenAccess Yes 2020-01-18T15:50:10Z
RU Moscow MSK-IX Any, anycast cluster used OpenAccess No 2014-05-07T09:07:48Z
RU Branch office VNIIFTRi, Irkutsk region, Russia     OpenAccess Yes 2012-11-01T02:01:18Z
RU VNIIFTRI, Moscow region, Russia   All areas OpenAccess Yes 2020-03-19T09:28:46Z
RU Saratov Information Networks Ltd. All areas OpenAccess Yes 2017-10-20T03:25:02Z
RU Saratov Information Networks Ltd. All areas OpenAccess Yes 2018-07-24T15:14:46Z
RU SNIIM, Novosibirsk, Russia   All areas OpenAccess No 2016-03-04T10:24:21Z
RU Novosibirsk   Worldwide OpenAccess No 2017-09-26T23:21:41Z
RU Russia, Moscow ojab Worldwide OpenAccess No 2020-10-11T09:41:39Z
RU Novosibirsk MSK-IX (NSK-IX) Any, anycast cluster used OpenAccess No 2014-05-07T09:05:46Z
RU Novosibirsk, Russia   Russia ClosedAccess Yes 2019-07-12T09:15:56Z
RU VNIIFTRI, Moscow region, Russia   All areas OpenAccess Yes 2013-04-15T10:00:36Z
RU Izhevsk, Russia   Worldwide OpenAccess No 2013-05-09T07:20:02Z
RU Moscow, Russia US Embassy Moscow, Russia Worldwide OpenAccess No 2018-01-12T03:39:57Z
RU Khabarovsk, Russia   Europe OpenAccess No 2013-02-06T01:43:57Z
RU Moscow, Russia US Embassy Moscow, Russia Worldwide OpenAccess No 2018-01-12T03:40:48Z
RU Vladivostok, Russia   Russia, Far East ClosedAccess Yes 2006-06-19T03:33:45Z
RU Khabarovsk, Russia   Europe OpenAccess No 2013-02-06T01:47:24Z
RU VNIIFTRI, Moscow region, Russia   All areas OpenAccess Yes 2013-04-15T10:01:01Z
RU Branch office VNIIFTRI, Irkutsk region, Russia     OpenAccess Yes 2012-11-01T01:59:15Z
RU Saratov Information Networks Ltd. All areas OpenAccess Yes 2018-07-19T22:13:11Z
SA Saudi Arabia, Riyadh, KACST/ISU   Worldwide OpenAccess Yes 2017-05-17T06:59:26Z
SA Saudi Arabia, Riyadh, KACST/ISU   Worldwide OpenAccess Yes 2017-05-17T07:00:09Z
SE Stockholm, Sweden Netnod Global OpenAccess No 2019-12-20T23:05:05Z
SE Sundsvall, Sweden Netnod Global OpenAccess No 2019-12-20T22:04:42Z
SE Stockholm, Sweden Netnod Global OpenAccess No 2019-12-20T23:05:37Z
SE Göteborg, Sweden Netnod Global OpenAccess No 2019-12-20T23:03:41Z
SE SP Swedish National Testing and Research Institute, BORAS, SWEDEN   all areas OpenAccess No 2004-09-27T01:52:20Z
SE Anycast Netnod Global OpenAccess No 2017-11-08T10:19:16Z
SE SP Technical Research Institute of Sweden, Stockholm Sweden   worldwide OpenAccess No 2013-06-27T12:37:26Z
SE Stupi AB, Stockholm, SWEDEN   SUnet, NORDUnet OpenAccess No 2019-12-20T23:05:50Z
SE Malmö, Sweden Netnod Global OpenAccess No 2019-12-20T23:04:33Z
SE SP Technical Research Institute of Sweden, Borås Sweden     OpenAccess No 2013-01-15T09:27:48Z
SE SP Technical Research Institute of Sweden, Borås Sweden     OpenAccess No 2013-01-15T09:44:50Z
SE SP Technical Research Institute of Sweden, Stockholm Sweden     OpenAccess No 2013-01-15T09:41:21Z
SE Stupi AB, Stockholm, SWEDEN   Europe OpenAccess No 2019-12-20T23:06:06Z
SE Malmö, Sweden Netnod Global OpenAccess No 2019-12-20T23:03:59Z
SE Sundsvall, Sweden Netnod Global OpenAccess No 2019-12-20T22:04:18Z
SE Göteborg, Sweden Netnod Global OpenAccess No 2019-12-20T23:02:00Z
SG SingNet, Singapore   STIX/Asia (outside Singapore), others by arrangement RestrictedAccess Yes 2004-09-27T02:08:00Z
SG SG DCS1 Worldwide OpenAccess Yes 2019-12-20T20:20:53Z
SI "J. Stefan" Institute, Ljubljana, Slovenia   Slovenia, European academic community, others by arrangement RestrictedAccess Yes 2019-12-20T23:06:31Z
SI MMC Mostovna, Nova Gorica, Slovenija   Slovenia, Ex-Yugoslavia academic community, others by arrangement OpenAccess Yes 2019-12-20T23:20:32Z
SWE Stockholm   Stockholm ClosedAccess Yes 2018-10-13T12:10:43Z
TR Turkey   Wordwide OpenAccess Yes 2019-12-20T20:31:31Z
UA Odessa, Ukraine   Central and Easten Europe OpenAccess Yes 2015-09-14T12:00:14Z
UA ISP ColoCall, DC Bunker, Kiev, Ukraine   Central and Easten Europe OpenAccess Yes 2011-08-26T10:37:27Z
UA Odessa, Ukraine   Ukraine OpenAccess No 2016-03-17T11:22:17Z
UA Odessa, Ukraine   Central and Easten Europe OpenAccess Yes 2019-12-20T21:27:09Z
UA ISP ColoCall, Kiev, Ukraine   Central and Easten Europe OpenAccess Yes 2011-08-27T20:08:11Z
UK Milton Keynes, UK Leo Bodnar Electronics Worldwide OpenAccess Yes 2017-01-06T23:42:24Z
UK Milton Keynes, UK Leo Bodnar Electronics Worldwide OpenAccess Yes 2017-01-06T23:41:40Z
UK Godalming, Surrey   UK OpenAccess No 2020-04-05T11:45:08Z
UK Merseyside   UK OpenAccess Yes 2019-12-20T21:28:50Z
UK Wrexham, UK theblains.org Worldwide OpenAccess Yes 2020-07-17T11:26:09Z
UK Milton Keynes, UK Leo Bodnar Electronics Worldwide OpenAccess No 2017-01-28T11:47:17Z
UK Milton Keynes, UK Leo Bodnar Electronics Worldwide OpenAccess Yes 2017-01-06T23:40:15Z
UK Leatherhead, Surrey, England, UK   World Wide RestrictedAccess Yes 2016-10-08T10:10:01Z
UK High Wycombe   UK / Europe RestrictedAccess Yes 2020-07-30T22:55:18Z
UK University of London Computer Centre, UK   JANET ClosedAccess Yes 2004-09-27T02:17:55Z
UK Milton Keynes, UK Leo Bodnar Electronics Worldwide OpenAccess No 2017-01-28T11:45:46Z
UK Newcastle, UK   Worldwide RestrictedAccess Yes 2019-11-21T07:06:29Z
US Santa Clara, CA   US OpenAccess No 2020-04-10T16:39:55Z
US Holt, MN Wikstrom Telephone Company US and Canada OpenAccess No 2019-12-20T22:33:52Z
US Santa Clara, CA   World OpenAccess No 2019-12-16T18:33:05Z
US Karlstad, MN Wikstrom Telephone Company US and Canada OpenAccess No 2019-11-02T05:08:47Z
US Troy, OH East Main Technology Inc. USA OpenAccess Yes 2019-09-08T02:56:49Z
US Santa Clara, CA   World OpenAccess No 2019-12-15T01:36:59Z
US AK University of Alaska, Fairbanks, AK   Pacific Northwest, others by arrangement RestrictedAccess Yes 2014-03-13T18:56:12Z
US CA Los Angeles, CA   US OpenAccess No 2012-03-02T22:38:27Z
US CA California Institute of Technology, Pasadena, CA   USA Pacific timezone, others by arrangement RestrictedAccess Yes 2014-03-13T04:29:07Z
US CA Rohnert Park, CA NTS Enabled, Port 4460 North America RestrictedAccess No 2020-08-05T23:00:42Z
US CA Suisun City, CA Silvertree Communications Global OpenAccess No 2020-01-31T21:23:19Z
US CA Hewlett-Packard Corp., Palo Alto, CA   USA Pacific and Mountain timezones, others by arrangement. RestrictedAccess Yes 2014-10-16T18:12:46Z
US CA University of Colorado, Boulder, Colorado   US OpenAccess Yes 2008-03-05T20:26:01Z
US CA Internet Software Consortium, Palo Alto, CA   BARRnet, Alternet-west, CIX-west OpenAccess No 2005-03-24T23:12:51Z
US CA Hurricane Electric, Fremont, California   all areas OpenAccess No 2005-04-06T14:02:40Z
US CA Hurricane Electric, San Jose, California   all areas OpenAccess No 2019-12-07T22:08:11Z
US CA HP Western Research Laboratory, Palo Alto, CA   NSFNET, BARR region OpenAccess No 2004-09-27T02:21:15Z
US CA UCLA, Los Angeles, CA   Pacific time zone, others on request RestrictedAccess Yes 2014-03-13T19:03:34Z
US CO NIST Boulder Laboratories, Boulder, Colorado   NSFnet, WESTnet OpenAccess No 2019-12-07T22:19:31Z
US CO JILA Laboratory, University of Colorado   Western US OpenAccess No 2019-12-27T21:24:07Z
US CO NIST Boulder Laboratories, Boulder, Colorado   NSFnet, WESTnet OpenAccess No 2019-12-07T22:15:35Z
US CO Schriever, Colorado   USA Pacific and Mountain time zones, others by arrangement. RestrictedAccess No 2019-12-07T22:11:44Z
US CO Boulder, CO Rainy Enterprises Mountain Time Zone OpenAccess No 2019-12-18T20:36:18Z
US CO NIST Boulder Laboratories, Boulder, Colorado   NSFnet, WESTnet OpenAccess No 2019-12-07T22:18:25Z
US CO NIST Laboratory, Boulder, Colorado   Open RestrictedAccess Yes 2008-03-01T21:54:23Z
US CO Schriever, Colorado   US Pacific, Mountain time zones, others by arrangement RestrictedAccess Yes 2015-06-01T17:09:54Z
US CT Cheshire Vyvygen Corporation New England and Montréal ClosedAccess No 2017-08-30T03:49:10Z
US DC U.S. Naval Observatory, Washington, DC   Eastern Time Zone RestrictedAccess No 2015-10-13T16:17:00Z
US DC U.S. Naval Observatory, Washington, DC   Eastern Time Zone RestrictedAccess No 2015-10-13T16:17:00Z
US DC U.S. Naval Observatory, Washington, DC   Eastern Time Zone RestrictedAccess No 2015-10-13T16:17:01Z
US DE ECE Department, University of Delaware, Newark, DE 19716   interplanetary RestrictedAccess No 2013-05-31T23:56:53Z
US DE University of Delaware, Newark, DE   BBN Planet SER ClosedAccess Yes 2004-09-27T03:11:00Z
US DE PEPCO Holdings Inc., 500 N Wakefield Dr., Newark DE   AT&T and QWEST OpenAccess No 2009-03-27T16:23:28Z
US FL Homestead, FL Ryan A. Krenzischek Global OpenAccess No 2020-08-11T06:34:28Z
US FL Homestead, FL Ryan A. Krenzischek Global OpenAccess No 2020-08-11T06:35:57Z
US FL University of Florida, Gainesville, FL   Eastern time zone US RestrictedAccess No 2015-10-23T16:45:13Z
US GA Georgia Institute of Technology, Atlanta, GA   USA Eastern timezone, others by arrangement RestrictedAccess No 2015-10-23T16:45:43Z
US GA Georgia Institute of Technology, Atlanta, GA   USA Eastern timezone, others by arrangement OpenAccess No 2018-08-06T02:06:47Z
US HI Maui High Performance Computing Center   Hawaii, others on request RestrictedAccess Yes 2014-03-14T14:09:30Z
US IA Monticello, Iowa USSHC Planetary OpenAccess No 2019-12-20T20:34:58Z
US IA United States Secure Hosting and Colocation, Monticello Iowa   Planetary OpenAccess No 2014-07-30T21:22:30Z
US IL Chicago, IL   North America OpenAccess No 2020-02-01T21:25:13Z
US IL University of Illinois, Urbana-Champaign, IL   CICNET, Midwest, NCSA region ClosedAccess Yes 2020-07-24T22:09:37Z
US IL Galesburg, IL Jet Air, Inc. North America OpenAccess No 2017-05-11T19:35:55Z
US IL Chicago, IL   North America OpenAccess No 2019-12-20T18:58:08Z
US IN CERIAS, Purdue University, West Lafayette, IN   Internet2, CIC and midwest US RestrictedAccess Yes 2017-06-07T16:01:05Z
US IN CERIAS, Purdue University, West Lafayette, IN   North America RestrictedAccess Yes 2017-06-03T19:06:25Z
US IN Indianapolis, IN Indianapolis Public Library North America RestrictedAccess Yes 2018-03-14T13:11:47Z
US IN Indianapolis, IN Indianapolis Public Library North America RestrictedAccess Yes 2018-01-30T16:39:44Z
US MA Massachusetts Institute of Technology, Cambridge, MA   Eastern US OpenAccess Yes 2004-09-27T03:31:46Z
US MA Cambridge, MA   Eastern US OpenAccess No 2004-09-27T03:38:00Z
US MD NIST Central Computer Facility, Gaithersburg, Maryland   NSFnet, SURAnet OpenAccess No 2005-08-19T21:35:18Z
US MD NIST Central Computer Facility, Gaithersburg, Maryland   NSFnet, SURAnet OpenAccess No 2005-08-19T21:33:51Z
US MN Bemidji, MN Bemidji NTP Project Worldwide OpenAccess No 2018-06-27T01:27:59Z
US MO Washington University, St. Louis, MO   USA Central timezone, others by arrangement. RestrictedAccess No 2015-10-23T16:45:56Z
US MO University of Missouri-Columbia, Columbia, MO, USA   MOREnet RestrictedAccess Yes 2017-06-05T13:53:06Z
US NC Chapel Hill, NC, USA UNC Chapel Hill Department of Computer Science Southeastern United States and Caribbean OpenAccess Yes 2017-02-10T21:44:47Z
US NC Chapel Hill, NC, USA UNC Chapel Hill Department of Computer Science Southeastern United States and Caribbean OpenAccess Yes 2017-02-10T21:44:08Z
US NC Chapel Hill, NC, USA UNC Chapel Hill Department of Computer Science Southeastern United States and Caribbean OpenAccess Yes 2017-02-10T21:44:21Z
US NC Chapel Hill, NC, USA UNC Chapel Hill Department of Computer Science Southeastern United States and Caribbean OpenAccess Yes 2017-02-10T21:44:35Z
US NJ Jensen Research Corporation, Ramsey NJ   Eastern US RestrictedAccess Yes 2011-12-02T03:15:30Z
US NJ Lumberton NJ   South Jersey OpenAccess Yes 2019-12-20T21:37:29Z
US NJ Jackson NJ USA N/A US-New Jersey OpenAccess No 2019-12-07T22:03:27Z
US NY Hurricane Electric, New York City, New York   all areas OpenAccess No 2019-12-20T22:47:30Z
US NY Long Island, New York, USA, Earth ZiaSpace Northeastern United States OpenAccess Yes 2020-05-27T02:33:12Z
US NY Morningside Campus, Columbia University, New York, NY   NYSERnet RestrictedAccess No 2015-10-13T20:47:21Z
US NY Syracuse, NY   NE United States OpenAccess Yes 2016-06-03T14:10:21Z
US OH East Main Technology Inc. in Troy, Ohio East Main Technology Inc. North America OpenAccess Yes 2019-09-08T02:55:01Z
US OK Oklahoma State University, Stillwater, OK   Central Time Zone, others by arrangement RestrictedAccess No 2017-06-03T19:22:02Z
US OK Edmond, Oklahoma   Any OpenAccess No 2020-03-10T05:00:00Z
US PA Penn State University, University Park, PA   Internet, Internet2, 3ROX ClosedAccess Yes 2017-06-03T19:23:29Z
US TX University of Houston, Houston, TX   US Central time zone, others on request RestrictedAccess No 2015-10-23T16:46:03Z
US UT XMission Internet, Salt Lake City, Utah   Western US OpenAccess No 2012-11-25T00:07:37Z
US UT Syracuse Utah NG7M Funded NTP Stratum 1 Servers Utah / Western US OpenAccess No 2016-12-07T07:24:02Z
US WA Seattle, WA MROW United States OpenAccess Yes 2019-06-12T18:14:56Z
US WA Spokane, WA USA BORGNET dot US Pacific Northwest, others by arrangement RestrictedAccess Yes 2020-09-22T09:55:29Z
US WI Netwrx Consulting   Global OpenAccess Yes 2017-01-04T02:56:25Z
US WI Netwrx Consulting   Global OpenAccess Yes 2017-01-04T02:51:23Z
US WI Computer Science Department, University of Wisconsin-Madison   US/any RestrictedAccess Yes 2017-06-05T22:26:21Z

Related topics: RulesOfEngagement, StratumTwoTimeServers, ManagingYourListEntries, SubmittingYourListEntriesViaEmail

Edit | WYSIWYG | Attach | Printable | Raw View | Backlinks: Web, All Webs | History: r15 < r14 < r13 < r12 < r11 | More topic actions
 
SSL security by CAcert
Get the CAcert Root Certificate
This site is powered by the TWiki collaboration platform
IPv6 Ready
Copyright &© 1999-2020 by the contributing authors. All material on this collaboration platform is the property of the contributing authors. Ideas, requests, problems regarding the site? Send feedback