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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.

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Stratum Two Time Servers

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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:
AM Yerevan, Armenia   Public OpenAccess Yes 2013-02-18T20:35:01Z
AM Abovyan/Kotayk GNC Alfa CJSC AM OpenAccess Yes 2017-01-24T10:28:32Z
AM Armenia, Yerevan, P. Sevak 1   Private, only 193.232.228.0 RestrictedAccess No 2010-11-04T20:18:24Z
AT Laxenburg, Austria IIASA AT OpenAccess No 2017-03-29T09:44:42Z
AT Leibnitz   Austria OpenAccess Yes 2019-09-13T05:23:32Z
AT Laxenburg, Austria IIASA AT OpenAccess No 2019-12-20T14:44:58Z
AU Canberra The Signal Co. Wireless. Australia OpenAccess No 2017-08-04T14:13:18Z
AU Melbourne, AU   Worldwide OpenAccess No 2019-12-20T21:58:01Z
AU Sydney, New South Wales, Australia TPG Internet Australia only (Australian ISP) OpenAccess No 2016-03-31T00:03:11Z
AU Frankfurt, DE Chronolabs Cooperative Worldwide OpenAccess Yes 2019-12-20T14:47:58Z
AU Frankfurt, DE Chronolabs Cooperative Worldwide OpenAccess Yes 2019-12-20T14:47:48Z
AU Frankfurt, DE Chronolabs Cooperative Worldwide OpenAccess Yes 2019-12-20T14:47:35Z
AU London, UK Chronolabs Cooperative Worldwide OpenAccess Yes 2019-12-20T14:46:59Z
AU Singapore, SG Chronolabs Cooperative Worldwide OpenAccess Yes 2019-12-20T14:46:24Z
AU Victoria, Australia mazzanet Enterprises Anywhere OpenAccess No 2019-12-20T18:55:26Z
AU Canberra The Signal Co. Wireless. Australia OpenAccess No 2017-08-04T14:10:12Z
AU Frankfurt, DE Chronolabs Cooperative Worldwide OpenAccess Yes 2019-12-20T14:47:12Z
AU Sydney, New South Wales, Australia TPG Internet Australia only (Australian ISP) OpenAccess No 2016-03-31T00:03:27Z
AU Singapore, SG Chronolabs Cooperative Worldwide OpenAccess Yes 2019-12-20T14:46:38Z
AU Frankfurt, DE Chronolabs Cooperative Worldwide OpenAccess Yes 2019-12-20T14:48:08Z
BE Gravelines   Europe OpenAccess Yes 2017-08-12T10:16:14Z
BE Steenbergen, NL Devrandom.be Comm. V BE, NL, LU, DE OpenAccess No 2019-12-20T14:50:50Z
BE Brussels, Belgium   European Union OpenAccess No 2004-09-24T02:34:39Z
BE Leuven, Belgium Team Belgium Europe OpenAccess Yes 2019-12-05T11:21:10Z
BE Brussels, Belgium   European Union OpenAccess No 2004-09-24T02:35:14Z
BG Svilengrad, Bulgaria   Worldwide OpenAccess No 2018-06-04T05:14:17Z
BG Plovdiv / Bulgaria NETGUARD Ltd. Europe OpenAccess No 2017-11-01T14:43:34Z
BR São Carlos, SP - IFSC USP   Worldwide OpenAccess Yes 2019-12-18T20:23:07Z
BR Curitiba, PR, Brazil PoP -PR / Brazilian Research Network (RNP) Brazil OpenAccess Yes 2017-06-06T17:28:48Z
BR Brasilia, Brazil   Brazil OpenAccess No 2010-04-16T22:46:59Z
BR Rio de Janeiro, Brazil   Brazil OpenAccess No 2010-04-16T22:45:26Z
BR Sao Paulo, Brazil   Brazil OpenAccess No 2010-04-16T22:46:03Z
BR Votuporanga, Sao Paulo, Brazil   Northwest Sao Paulo, Brazil OpenAccess No 2020-03-21T23:40:25Z
BR Jundiai - Sao Paulo - Brasil   Southwest Brasil OpenAccess No 2019-12-20T19:30:46Z
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 OpenAccess No 2019-02-07T19:56:22Z
BR RNP - Brazilian Research Network/Rede Nacional de Pesquisa   Brazil OpenAccess Yes 2004-09-24T02:35:47Z
CA Ottawa, Ontario, Canada National Research Council of Canada Canada OpenAccess Yes 2019-12-20T15:32:50Z
CA Hamilton, Ontario, Canada Digibase Operations North America, preference for Eastern Canada and North-Eastern US OpenAccess Yes 2016-08-25T19:25:16Z
CA University of Calgary   Canada OpenAccess Yes 2019-12-20T15:30:35Z
CA Canadian Meteorological Centre   Eastern Canada OpenAccess No 2004-09-24T02:42:16Z
CA Toronto, Ontario, Canada AS63949 Linode Worldwide OpenAccess No 2020-05-09T19:37:30Z
CA Beauharnois, Québec, Canada   Any OpenAccess No 2018-09-20T13:27:41Z
CA Ottawa, Ontario, Canada National Research Council of Canada Canada OpenAccess No 2005-11-30T04:30:02Z
CA Dorval, Québec, Canada Canadian Meteorological Centre Eastern Canada OpenAccess Yes 2004-09-24T02:41:59Z
CA Oakville, Ontario, Canada Servman.ca Eastern Canada and US OpenAccess Yes 2013-06-20T14:25:57Z
CA Winnipeg, Manitoba, Canada Manitoba Internet Exchange North America OpenAccess Yes 2019-12-20T15:36:21Z
CA Vancouver, BC Tech Futures Interactive Inc. - CloudSingularity Network North America OpenAccess No 2019-07-17T19:00:18Z
CA Toronto, Ontario, CANADA University of Toronto Eastern Canada RestrictedAccess Yes 2019-12-20T15:31:53Z
CA Victoria, BC, Canada   Worldwide OpenAccess No 2019-11-27T22:14:20Z
CA Edmonton, Alberta, Canada EPL Western Canada, Canada OpenAccess No 2020-07-02T02:06:56Z
CA Regina, Saskatchewan, Canada University of Regina SASK#net, CA*net, Canada OpenAccess No 2004-09-24T02:45:00Z
CA Toronto Atlantic.Net (https://www.atlantic.net/) Canada OpenAccess Yes 2017-02-06T09:29:32Z
CA Toronto, Ontario, Canada University of Toronto Eastern Canada RestrictedAccess Yes 2019-12-20T15:34:19Z
CH Geneva, Switzerland   Worldwide OpenAccess No 2020-04-14T12:15:01Z
CH Zurich, Switzerland   Switzerland/Europe OpenAccess Yes 2008-02-11T09:25:48Z
CH Exion, Manno, Switzerland - Multihomed COLT & Swisscom uplink Martino Dell'Ambrogio private services Switzerland/Europe OpenAccess No 2019-12-07T18:52:36Z
CH Bern, Switzerland Swiss Federal Office of Metrology (METAS) Switzerland, others by arrangement OpenAccess Yes 2006-12-13T12:19:39Z
CH Bern, Switzerland Swiss Federal Office of Metrology (METAS) Switzerland OpenAccess Yes 2006-12-13T12:23:20Z
CH Bern, Switzerland Swiss Federal Office of Metrology (METAS) Switzerland OpenAccess Yes 2006-12-13T12:08:47Z
CH Zurich ZURICH DATACENTER AG Europe OpenAccess Yes 2020-03-13T13:13:05Z
CH Geneva, Switzerland   Worldwide OpenAccess No 2020-04-14T12:15:13Z
CH Switzerland   Switzerland ClosedAccess No 2019-09-15T18:50:35Z
CN Shenyang Liaoning China Northeastern University China OpenAccess No 2012-12-23T03:57:06Z
CN Dalian, Liaoning Dalian Neusoft University of Information (大连东软信息学院) China OpenAccess No 2019-12-20T21:36:52Z
CZ Rez near Prague, Czech Republic   Europe OpenAccess No 2006-01-13T02:45:49Z
CZ Prague, The Czech Republic   Czech Republic OpenAccess Yes 2004-09-24T02:46:03Z
DE Höst/NRW   EU OpenAccess No 2019-12-20T22:11:15Z
DE Berlin   Europe OpenAccess No 2019-12-20T23:21:50Z
DE Germany The Network Nerds Global OpenAccess No 2019-12-20T22:22:38Z
DE Frankfurt am Main Finenumbers LLC Worldwide OpenAccess No 2020-05-27T06:23:19Z
DE Hetzner RZ13, Falkenstein/Vogtl., Germany (AS24940)   Germany, Europe OpenAccess Yes 2019-12-20T22:44:54Z
DE Falkenstein/Vogtland Hetzner (https://www.hetzner.de) Germany/Europe OpenAccess Yes 2017-02-06T09:30:23Z
DE Nuermberg, Germany   Europe OpenAccess No 2019-12-20T22:10:38Z
DE Frankfurt am Main   CH DE EU US OpenAccess No 2019-10-01T21:58:27Z
DE Munich, Germany RXTX DK Europe OpenAccess No 2019-11-20T01:03:17Z
DE Germany   Germany OpenAccess No 2019-12-20T19:33:28Z
DE Hannover,Germany BCS2005.net Germany OpenAccess Yes 2016-11-17T06:21:09Z
DE Frankfurt am Main   Europe, CH OpenAccess No 2018-05-29T20:17:04Z
DE Germany dianacht.de any OpenAccess No 2020-04-09T09:51:04Z
DE Duesseldorf FanLin Freifunk Münster DE OpenAccess No 2017-12-14T06:48:13Z
DE Karlsruhe, Baden-Württemberg, Germany www.Server24-7.eu Germany, Europe OpenAccess No 2019-12-15T01:48:56Z
DE Germany, Wagäusel WIRCON GmbH Germany OpenAccess Yes 2019-12-20T22:03:22Z
DE Bochum   UK / Europe RestrictedAccess Yes 2017-07-15T17:53:00Z
DE Germany Faculty of Technology, Bielefeld University Germany, Europe OpenAccess Yes 2013-02-18T20:39:25Z
DE Bremen, Germany PLUTEX Europe OpenAccess No 2018-09-12T13:35:36Z
DE Nuremberg, Bavaria, Germany Arrow-Systems (https://www.arrow-systems.de) Germany, Europe OpenAccess No 2020-07-05T19:47:21Z
DE Augsburg, Bavaria, Germany University of Applied Sciences (FH) Germany, Europe, European academic community RestrictedAccess Yes 2015-05-21T21:45:12Z
DE Germany domainfactory (https://www.df.eu/) Germany/Europe OpenAccess Yes 2017-02-06T09:29:21Z
DE Nuremberg, Germany netcup (AS197540) Germany, Europe OpenAccess Yes 2019-05-07T12:07:20Z
DE Karlsruhe, Germany   global OpenAccess Yes 2020-02-10T23:22:17Z
DE Falkenstein/Vogtland, Germany   Switzerland/Germany/Europe OpenAccess Yes 2013-03-12T13:55:22Z
DE Nuernberg, Germany hackbyte (private server) Europe OpenAccess No 2017-02-25T03:14:49Z
DE Stuttgart, Germany   Germany, Europe OpenAccess No 2019-12-20T19:03:03Z
DE Baden-Württemberg   Germany ClosedAccess No 2020-01-18T22:50:41Z
DE Bremen, Germany PLUTEX Europe OpenAccess No 2018-09-12T13:36:51Z
DE Bremen, Germany PLUTEX Europe OpenAccess No 2018-09-12T13:35:02Z
DE Germany Faculty of Technology, Bielefeld University Germany, Europe OpenAccess No 2010-03-27T02:14:28Z
DE Nuremberg, Germany   Germany, Europe OpenAccess No 2019-04-15T20:36:51Z
DE Augsburg, Bavaria, Germany University of Applied Sciences (FH) Germany, Europe, European academic community RestrictedAccess Yes 2015-05-21T21:37:27Z
DE Falkenstein, Germany EDV Service Hüske Germany, Europe OpenAccess No 2017-03-13T09:23:17Z
DE Frankfurt, DE stygium.net worldwide OpenAccess No 2017-03-29T17:28:18Z
DE Wuppertal, Germany   Germany and Europe OpenAccess No 2013-09-06T20:19:17Z
DE Düsseldorf UIT Services GmbH Germany OpenAccess Yes 2020-01-10T23:53:17Z
DE Bremen, Germany PLUTEX Europe OpenAccess No 2018-09-12T13:29:33Z
DE Nürnberg   Worldwide OpenAccess Yes 2016-08-23T16:46:22Z
DE Limburg, Germany IT & EDV-Service Froehlich Germany,Europe OpenAccess No 2019-12-20T19:10:43Z
DE Falkenstein, Germany EDV-Service Hüske Germany, Europe OpenAccess No 2020-06-15T14:13:53Z
DE Germany Guido Haase Europe OpenAccess No 2019-07-31T11:05:31Z
DE Ismaning, Munich, Germany freiwuppertal.de worldwide OpenAccess No 2019-12-20T20:28:13Z
DE Frankfurt, Germany kaputts.net Worldwide OpenAccess No 2018-04-19T00:13:11Z
DE Frankfurt am Main Private DE CH EU US OpenAccess No 2019-10-01T22:00:35Z
DE Duesseldorf, Germany private Worldwide OpenAccess No 2019-12-20T21:57:19Z
DE Stuttgart, Germany   Germany, Europe OpenAccess No 2019-12-20T19:05:30Z
DE Stuttgart, Germany   Germany, Europe OpenAccess No 2019-12-20T19:03:24Z
DE Germany Faculty of Technology, Bielefeld University Germany, Europe OpenAccess No 2010-03-27T02:14:57Z
DE Nürnberg, Germany   Germany OpenAccess No 2019-12-20T19:29:56Z
DE Falkenstein, Bavaria, Germany   Europe OpenAccess Yes 2019-10-26T12:39:57Z
DE Frankfurt, Germany   Worldwide OpenAccess No 2019-12-20T23:19:56Z
DE Augsburg, Bavaria, Germany University of Applied Sciences (FH) Germany, Europe, European academic community RestrictedAccess Yes 2015-05-21T21:41:45Z
DE Nuremberg, Germany   Germany, Europe OpenAccess No 2019-12-20T19:30:19Z
DE Jülich, Germany Intrabit GmbH Germany, Europe OpenAccess No 2018-09-17T09:25:28Z
DE Düsseldorf UIT Services GmbH Germany OpenAccess Yes 2020-01-10T23:53:32Z
DE Munich, Germany   Germany and Europe OpenAccess No 2012-08-11T02:24:09Z
DK Denmark   Worldwide OpenAccess No 2018-03-22T20:42:05Z
DK Vordingborg, Denmark   All OpenAccess No 2019-12-21T17:42:17Z
DK Broenderslev, Denmark   Denmark / Europe OpenAccess Yes 2019-12-18T19:42:31Z
DK Albertslund, Denmark RXTX DK Europe OpenAccess No 2019-11-20T01:03:49Z
DK Falkenberg, Germany   DK, DE RestrictedAccess Yes 2017-09-07T06:54:50Z
DK Gladsaxe, Denmark RXTX DK Europe OpenAccess Yes 2020-03-31T06:44:19Z
DK Denmark   Worldwide OpenAccess No 2018-03-22T20:42:34Z
DK Fredericia, Denmark   Europe RestrictedAccess No 2017-01-25T09:23:23Z
ES Madrid (Spain)   Spain OpenAccess Yes 2009-01-16T17:11:51Z
FI Helsinki Ghosh Pro Solutions Worldwide OpenAccess Yes 2019-03-25T03:06:40Z
FR OVH GRA 1, Gravelines, Nord-Pas-de-Calais-Picardie 59820, France   Worldwide OpenAccess Yes 2020-02-26T12:28:46Z
FR Paris, France   France OpenAccess No 2019-12-20T19:00:42Z
FR Néel Institute, Trappes, Ile de France, France   France, Europe OpenAccess Yes 2014-09-09T14:54:15Z
FR Paris, France SYRTE, Observatoire de Paris France/Europe OpenAccess Yes 2016-01-28T15:59:49Z
FR Vitry / DC2 Online Europe OpenAccess Yes 2019-12-20T19:11:06Z
FR Villeurbanne LASOTEL Europe OpenAccess No 2018-08-05T17:42:09Z
FR Paris Saint-Denis IBX Center   Anywhere OpenAccess No 2019-03-07T14:34:09Z
FR Gravelines/Nord/France Apio systems @ europe fr OpenAccess Yes 2020-02-02T11:43:48Z
FR Paris 75013, France Hubert Viarouge France, Europe, World OpenAccess No 2018-08-29T21:16:11Z
FR Montpellier, France   France OpenAccess Yes 2019-12-20T19:45:08Z
FR Roubaix, France Firas Kraiem Europe/France OpenAccess No 2014-10-04T22:00:55Z
FR Roubaix, France SeedHost Europe OpenAccess No 2020-02-17T22:48:05Z
FR Telecity datacenter (Equinix), Aubervilliers, Paris, France DuckCorp (https://www.duckcorp.org/) anywhere OpenAccess No 2019-03-07T07:17:16Z
FR Strasbourg, Germany Gergely Lónyai Europe OpenAccess Yes 2020-06-14T13:37:46Z
FR Roubaix, France The Xipalia Group / http://xipalia.com @, Europe, France OpenAccess No 2015-02-19T10:51:11Z
FR     France/Europe OpenAccess Yes 2007-12-28T12:53:39Z
FR Roubaix RBX4 OVH France OpenAccess No 2020-05-11T01:36:58Z
FR Gravelines omgomg.eu Global OpenAccess No 2019-12-20T21:59:58Z
FR Courbevoie / France   France OpenAccess No 2019-12-20T19:09:00Z
FR Roubaix, France sceen.net Anywhere OpenAccess No 2019-11-05T13:11:58Z
GB Aldershot, UK CatN Hosting UK, Western Europe OpenAccess No 2013-06-18T13:28:36Z
GB London UK Speed Welshpool Ltd UK & Europe OpenAccess Yes 2017-11-12T12:47:47Z
GR Athens, Greece ASDA Worldwide OpenAccess No 2020-05-14T03:27:20Z
GR Athens, Greece Golden Deal S.A. Europe OpenAccess No 2015-07-20T00:17:26Z
GR Athens, GR   Greece OpenAccess Yes 2019-12-20T22:46:45Z
GR Athens, Greece Golden Deal S.A. Europe OpenAccess No 2015-07-20T00:14:02Z
GR Athens, Greece ASDA Worldwide OpenAccess No 2020-05-14T03:28:12Z
HK Hong Kong HGC Global Communications Global OpenAccess Yes 2020-05-09T09:20:49Z
HK Hong Kong xTom Hong Kong Limited Worldwide OpenAccess No 2019-02-27T14:46:16Z
HR Split, Croatia CARNet (Croatian Academic and Research Network) Croatia/Europe OpenAccess Yes 2011-12-09T11:08:36Z
HR Zagreb, Croatia CARNet (Croatian Academic and Research Network) Croatia/Europe OpenAccess Yes 2011-12-09T11:11:02Z
HR CARNet (Croatian Academic and Research Network)   Croatia/Europe OpenAccess Yes 2011-12-09T11:11:39Z
HR Rijeka, Croatia CARNet (Croatian Academic and Research Network) Croatia/Europe OpenAccess Yes 2011-12-09T11:07:05Z
HR Osijek, Croatia CARNet (Croatian Academic and Research Network) Croatia/Europe OpenAccess Yes 2011-12-09T11:08:07Z
HU KFKI Research Institute for Particle and Nuclear Physics   HUNGARNET OpenAccess Yes 2004-09-24T02:57:08Z
HU Budapest, Hungary, Europe BE-ON NET LTD Europe OpenAccess Yes 2015-04-23T07:16:34Z
ID DKI Jakarta LIPI - Lembaga Ilmu Pengetahuan Indonesia World Wide RestrictedAccess No 2017-01-01T09:08:52Z
ID Surabaya   Indonesia OpenAccess Yes 2018-06-10T17:41:41Z
ID Jakarta PT. Maxindo Mitra Solusi Indonesia OpenAccess Yes 2018-09-28T05:14:41Z
ID Jakarta PT. Maxindo Mitra Solusi Indonesia OpenAccess Yes 2019-12-20T22:18:16Z
ID Yogyakarta Citranet Yogya Internet OpenAccess Yes 2014-12-11T04:42:12Z
IE Dublin, Ireland. School of Mathematics, Trinity College Ireland, UK OpenAccess Yes 2005-01-26T15:31:01Z
IQ Iraq - Sulaimaniyah   Iraq OpenAccess Yes 2019-12-20T19:40:43Z
IT Milan IRH.it/Prometeus.com Worldwide OpenAccess Yes 2020-05-21T08:05:31Z
JO JO   JORDAN OpenAccess Yes 2015-10-08T23:51:57Z
JP Habikino-shi, Osaka-fu, JP OX. 社会福祉部/社會公益事業部 Worldwide OpenAccess No 2020-01-17T16:12:58Z
KR Incheoun NamDonggu MansuDong   Korea OpenAccess Yes 2017-02-07T01:39:21Z
KR Bundang, Korea KT-IDC Korea RestrictedAccess Yes 2017-06-03T23:48:02Z
LU Luxembourg, Luxembourg, Europe Hosting Skills a.s.b.l. Luxembourg (Europe) RestrictedAccess Yes 2017-08-10T00:15:12Z
MA Rabat MARWAN Africa OpenAccess Yes 2018-05-22T12:03:26Z
MD Chisinau, Moldova trabia network Global OpenAccess No 2019-12-19T14:57:23Z
MK Gostivar, Republic of North Macedonia, Europe NTPMK Republic of North Macedonia rest of Europe OpenAccess No 2019-05-20T21:37:35Z
MV Male', Maldives     OpenAccess No 2012-12-13T13:33:35Z
MV Male', Maldives     OpenAccess No 2012-12-13T13:31:58Z
MV Male', Maldives     OpenAccess No 2012-12-13T13:17:17Z
MV Male', Maldives     OpenAccess No 2012-12-13T13:35:24Z
MX NY,CA,DE,FR   Worldwide OpenAccess Yes 2019-12-20T21:54:23Z
NL Amsterdam   Europe OpenAccess Yes 2015-04-23T16:55:29Z
NL Rotterdam   NL OpenAccess Yes 2019-12-20T20:08:48Z
NL Haarlem, Netherlands Gravitywave Worldwide OpenAccess Yes 2019-10-15T20:01:45Z
NL Beetsterzwaag   The Netherlands OpenAccess Yes 2019-12-20T21:25:10Z
NL Netherlands xTom.com, Inc. Worldwide OpenAccess No 2019-02-27T14:44:41Z
NL Frankfurt   worldwide OpenAccess No 2019-12-20T19:49:55Z
NL Amsterdam http://zeptobars.com Europe OpenAccess No 2019-11-17T16:18:53Z
NL Bellingwolde, Groningen, Netherlands   World OpenAccess Yes 2019-12-20T19:45:40Z
NL Alblasserdam   worldwide OpenAccess No 2019-12-20T19:48:48Z
NL Dronten, Flevoland, The Netherlands Neostrada B.V. WorldWide OpenAccess Yes 2018-01-12T18:21:03Z
NL Gemert, Noord-Brabant, NL   Europe OpenAccess Yes 2016-02-29T09:45:24Z
NL Globally dispersed (anycast) SIDN Worldwide OpenAccess No 2020-05-22T17:44:56Z
NL Rotterdam   Worldwide OpenAccess Yes 2019-12-20T19:02:27Z
NL Rotterdam, the Netherlands   Worldwide OpenAccess Yes 2016-08-23T13:29:00Z
NO IT-Dept., University of Tromso   NORDUnet OpenAccess Yes 2008-03-25T13:09:22Z
NZ Dunedin, New Zealand University of Otago New Zealand OpenAccess Yes 2004-09-24T03:03:10Z
NZ Palmerston North, New Zealand Massey University New Zealand OpenAccess No 2005-03-11T13:03:16Z
PE Beauharnois BIGDAVI S.A.C. PERÚ RestrictedAccess Yes 2019-11-21T01:39:12Z
PL 05-850 Ożarów Mazowiecki, Polska (OVH Datacenter Warsaw) EIGENSYSTEMS Poland/Europe OpenAccess No 2019-03-24T18:44:03Z
PL Warsaw, Poland A-M-Vpl (https://www.a-m-v.pl) Poland, Europe OpenAccess Yes 2019-10-26T12:49:33Z
PL 04-870 Warszawa, Polska (JAK Sp. z o.o. HQ, Vectra/VirtuaOperator fiber network). JAK Sp. z o.o. Poland/Europe OpenAccess No 2019-03-24T19:05:15Z
PL Europe https://karamba.me Poland OpenAccess Yes 2020-03-03T07:36:01Z
PL 04-957 Warszawa, Polska (Orange network, UMTS & VDSL connection) AS15B Poland/Europe OpenAccess No 2019-12-20T22:24:29Z
PL Warsaw e-utp.net Europe OpenAccess Yes 2019-12-20T20:09:38Z
PL Wegrzce, near Cracow; Poland   Poland OpenAccess No 2019-12-20T19:07:16Z
PT Lisboa, Portugal Observatório Astronómico de Lisboa Portugal/Europe OpenAccess No 2006-02-12T16:30:42Z
PT Lisboa, Portugal INSILICO LABS (www.insilicolabs.pt) Portugal/Europe OpenAccess Yes 2020-07-04T18:03:19Z
PY Asunción COPACO S.A. Paraguay OpenAccess No 2017-10-27T23:12:55Z
RO BluePink Datacenter @ Constanta, Romania BluePink EU OpenAccess Yes 2014-09-28T13:24:15Z
RO Timisoara, RO   Anywhere OpenAccess No 2019-12-20T19:44:25Z
RO BluePink Datacenter @ Constanta, Romania BluePink EU OpenAccess Yes 2019-12-20T19:31:41Z
RO Cluj, Romania, Europe   Europe RestrictedAccess No 2020-06-29T19:48:53Z
RO Bucharest, Aviatiei Private Europe OpenAccess Yes 2019-12-05T23:23:35Z
RO Suceava, 720236, Romania   Romania/Europe OpenAccess Yes 2017-02-08T18:21:54Z
RO Suceava, 720236, Romania   Romania/Europe OpenAccess Yes 2017-02-08T18:21:45Z
RO Cluj-Napoca, RO   Anywhere OpenAccess No 2019-12-20T19:43:39Z
RO Drobeta Datacenter DATA ZYX SRL Romania/Europe OpenAccess Yes 2019-12-20T20:19:44Z
RO Magurele, Romania IFIN-HH Romania OpenAccess Yes 2017-02-06T08:44:58Z
RO Bucharest, RO   Anywhere OpenAccess No 2017-02-26T01:07:08Z
RS Belgrade Faculty of Computer Science Union University of Belgrade Serbia OpenAccess Yes 2016-04-07T11:41:18Z
RU Saint-Petersburg https://MetroEthernet.ru Russia/Europe OpenAccess Yes 2019-12-20T22:17:24Z
RU Russia/Samara   Russia OpenAccess Yes 2020-03-03T07:27:03Z
RU Novokuznetsk Truenetwork All areas OpenAccess Yes 2017-03-19T12:01:08Z
RU Moscow Finenumbers LLC Worldwide OpenAccess Yes 2020-05-28T06:21:26Z
RU Moscow ForstWoof Worldwide OpenAccess No 2017-10-30T19:36:59Z
RU Moscow Finenumbers LLC Worldwide OpenAccess No 2020-05-27T06:31:57Z
RU Tyumen, Russia Delta Telesystems Ltd. Russia/Europe OpenAccess No 2018-06-20T01:09:12Z
RU Murmansk HWS RU ClosedAccess Yes 2015-10-21T16:49:14Z
RU Saratov Information Networks Ltd. All areas OpenAccess Yes 2019-12-20T19:26:42Z
RU Saint-Petersburg, Russia   European Russia OpenAccess Yes 2020-05-22T14:49:14Z
RU Murino, Leningrad region   Russia, Europe OpenAccess No 2020-02-18T20:03:51Z
RU Orenburg, Russia InterG Ltd Global OpenAccess Yes 2018-07-12T21:16:55Z
RU VNIIFTRI, Moscow region, Russia   Russia OpenAccess Yes 2019-12-20T23:18:46Z
RU Magnitogorsk, Russia Private Internet Service Russia OpenAccess No 2015-10-26T09:28:18Z
RU Pushchino, Moscow region, Russia   Russia OpenAccess Yes 2006-11-23T15:57:06Z
RU Saint-Petersburg   Russia/Europe OpenAccess Yes 2019-12-20T22:09:57Z
RU Kurgan, Kurgan region, Russia Home Co. Ltd. Russia/Europe OpenAccess Yes 2019-10-18T17:10:40Z
SE Bjuv, Sweden   Europe OpenAccess No 2019-12-20T19:21:56Z
SE Vanersborg, Sweden   Europe OpenAccess No 2019-12-17T03:50:26Z
SE flygplats.net, Sigtuna, Sweden   Europe OpenAccess No 2005-04-13T13:54:10Z
SG Singapore   Singapore and Asia RestrictedAccess Yes 2018-09-29T15:46:35Z
SI ARNES (Academic and Research Network of Slovenia), Ljubljana, Slovenia   Slovenia/Europe OpenAccess Yes 2004-09-24T03:10:09Z
SI ARNES (Academic and Research Network of Slovenia), Ljubljana, Slovenia   Slovenia/Europe OpenAccess Yes 2004-09-24T03:10:24Z
SI "J. Stefan" Institute, Ljubljana, Slovenia   Slovenia, Europe, others by arrangement RestrictedAccess Yes 2005-03-04T01:14:33Z
SK Bratislava, Slovakia THR Systems, a.s. Slovakia, Czech Republic, Europe OpenAccess No 2019-12-20T21:27:37Z
SK Presov   Slovakia OpenAccess No 2019-12-07T18:56:06Z
TH Thailand ShawIT Thailand, Asia ClosedAccess Yes 2020-04-27T20:59:22Z
TR Sibernet Ankara Turkey   Turkey OpenAccess Yes 2019-12-20T23:19:23Z
TW Taiwan National Time and Frequency Standard Laboratory Taiwan OpenAccess No 2019-12-18T20:27:51Z
TW Taiwan National Time and Frequency Standard Laboratory Taiwan OpenAccess No 2019-12-18T20:31:22Z
TW Taiwan National Time and Frequency Standard Laboratory Taiwan OpenAccess No 2019-12-18T20:26:39Z
TW Taiwan National Time and Frequency Standard Laboratory Taiwan OpenAccess No 2019-12-18T20:28:31Z
TW Taiwan National Time and Frequency Standard Laboratory Taiwan OpenAccess No 2019-12-18T20:30:35Z
UA Kotsybinske PE Lysenko Ukraine OpenAccess Yes 2017-07-03T08:55:26Z
UA Rivne, Ukraine Campus Networks UA, RU, PL OpenAccess No 2019-12-20T20:15:18Z
UA Rivne, Ukraine Campus Networks UA, RU, PL OpenAccess No 2019-12-20T23:21:05Z
UA Kyiv, Ukraine SELF Worldwide OpenAccess Yes 2019-12-19T13:39:34Z
UA Vinnytsia IP-Connect LLC Worldwide OpenAccess Yes 2019-12-20T22:23:54Z
UK Lancaster, UK   UK OpenAccess No 2012-02-02T11:24:46Z
UK University of Manchester, Manchester, England   UK OpenAccess Yes 2004-09-24T03:14:27Z
UK London, UK Eria Group/ Eria Hosting UK, Europe OpenAccess No 2017-11-02T18:55:19Z
UK ExNet Ltd, London, UK   UK/Europe/any OpenAccess Yes 2004-09-24T03:12:10Z
UK Cambridge, UK Private UK/EU OpenAccess Yes 2019-12-20T20:32:27Z
UK North Thatcham, Berkshire, England   UK, Europe OpenAccess Yes 2016-03-23T21:40:20Z
UK South Thatcham, Berkshire, England   UK, Europe OpenAccess Yes 2016-02-29T14:31:33Z
UK Markyate, Hertfordshire, England The Creative Organisation UK, Europe OpenAccess Yes 2014-04-22T14:58:25Z
UK Cambridge, UK   UUNET (formerly known in the UK as PIPEX); UK OpenAccess Yes 2019-12-20T22:47:06Z
UK Lancaster, UK   UK OpenAccess No 2012-10-08T08:36:20Z
UK Lancashire, UK   United Kingdom OpenAccess No 2015-04-23T16:46:35Z
UK Poole, UK Web Wiz UK, Europe OpenAccess Yes 2019-04-23T14:43:09Z
UK School of Informatics, University of Edinburgh, Scotland, UK   UK; associates of Edinburgh University worldwide OpenAccess Yes 2006-03-27T12:56:41Z
UK London   Europe OpenAccess No 2018-05-09T07:33:58Z
US Red Springs North Carolina   United States OpenAccess Yes 2019-08-16T03:04:57Z
US Piscataway. NJ USA   Northeast USA OpenAccess No 2019-12-20T22:12:05Z
US California   US RestrictedAccess Yes 2017-07-15T17:54:11Z
US East Main Technology Inc. in Troy, Ohio East Main Technology Inc. Global OpenAccess Yes 2019-09-08T03:03:09Z
US New York City Ardoin Family North America OpenAccess Yes 2020-07-08T10:53:33Z
US New York City NTS Capable North America OpenAccess Yes 2020-07-11T07:35:17Z
US USA, IN https://skylineservers.com Worldwide OpenAccess No 2020-05-17T15:38:50Z
US Fremont, CA xTom.com, Inc. Worldwide OpenAccess No 2019-02-27T14:45:22Z
US AZ Phoenix, AZ   North America OpenAccess No 2020-05-01T21:09:14Z
US AZ Phoenix, AZ Phoenix Public Library North America OpenAccess No 2020-05-01T21:07:14Z
US AZ Phoenix, Arizona ZiaSpace Southwest United States, Mexico OpenAccess Yes 2020-05-27T02:36:46Z
US AZ Flagstaff, AZ Airgapped.io US OpenAccess No 2019-12-20T22:28:18Z
US CA Los Angeles, CA   US OpenAccess No 2019-12-20T19:38:43Z
US CA Los Angeles, CA   US OpenAccess No 2017-10-27T23:34:04Z
US CA San Diego, CA   Western United States and Northern Mexico OpenAccess Yes 2019-12-07T19:22:10Z
US CA www.sonic.net, Santa Rosa, CA, USA   Northern California OpenAccess No 2005-11-17T23:24:19Z
US CA US CA ntp.jbkglimited.com Worldwide OpenAccess No 2017-10-27T23:29:05Z
US CA Fremont, CA, US Linode any OpenAccess No 2019-11-09T20:05:00Z
US CA Oakland, CA   US RestrictedAccess Yes 2017-06-03T17:30:45Z
US CA Fremont, CA, USA   RTT < 50ms OpenAccess Yes 2010-12-28T21:30:11Z
US CA Lake Arrowhead, CA, USA   within 100ms of Digilink.net RestrictedAccess Yes 2007-03-02T16:30:33Z
US CA Los Angeles, CA The RC Archdiocese of Los Angeles US OpenAccess No 2019-12-08T22:56:14Z
US CA San Francisco, CA   Global OpenAccess No 2020-04-28T17:43:01Z
US FL Miami, FL Gianni Perez - www.skylabus.com Global OpenAccess No 2019-12-20T22:16:26Z
US FL Homestead, FL Ryan A. Krenzischek Global OpenAccess No 2018-07-14T03:27:37Z
US FL Homestead, FL Ryan A. Krenzischek Global OpenAccess No 2018-07-14T03:29:02Z
US GA Atlanta, GA, US (ATL) Hosted at Linode at Zayo (formerly AtlantaNAP) Everywhere OpenAccess No 2018-12-01T10:18:40Z
US GA University System of Georgia NOC, Atlanta, GA   PeachNet (Georgia) OpenAccess Yes 2004-09-24T02:20:00Z
US IA Iowa City, IA Jet Air, Inc. North America OpenAccess No 2017-05-12T15:27:47Z
US IL Steadfast, Chicago, IL steadfast.net North America OpenAccess No 2013-03-15T19:43:34Z
US IL Steadfast, Chicago, IL steadfast.net North America OpenAccess No 2013-03-15T19:43:54Z
US IL University of Illinois, Urbana-Champaign, IL   CICNET, Midwest, NCSA region OpenAccess No 2016-05-24T14:31:41Z
US IL Fort Sheridan, Illinois   Midwest OpenAccess Yes 2008-12-05T17:43:14Z
US IL Steadfast, Chicago, IL steadfast.net North America OpenAccess No 2013-03-15T19:44:03Z
US IL University of Illinois, Urbana-Champaign, IL   CICNET, Midwest, NCSA region OpenAccess No 2015-08-05T14:34:20Z
US IL University of Illinois, Urbana-Champaign, IL   CICNET, Midwest, NCSA region OpenAccess No 2016-05-24T14:32:09Z
US IL Steadfast, Chicago, IL steadfast.net North America OpenAccess No 2017-02-10T02:55:00Z
US KS KansasNet OnLine Services, Manhattan, KS   Central USA / Great Plains OpenAccess No 2004-09-24T17:13:38Z
US MA Peabody, MA   North America OpenAccess No 2015-07-13T09:22:26Z
US MI Southfield, MI Nexcess Anywhere OpenAccess No 2016-04-19T21:55:03Z
US MI Southfield, Michigan   Open OpenAccess Yes 2019-12-20T18:56:52Z
US MN Minneapolis, MN   US upper midwest region OpenAccess Yes 2017-12-13T22:50:38Z
US MN Burnsville, MN, USA   United States OpenAccess Yes 2019-12-20T19:53:01Z
US MO Springfield, Mo Net Vision Communications Central US OpenAccess No 2019-05-03T12:58:11Z
US MO Kansas City, MO Nexus Systems, Inc. Central Prefered, Nationwide Allowed OpenAccess Yes 2019-12-20T22:09:19Z
US MT University of Montana, Missoula, Montana   Northwest USA, Internet 2 OpenAccess Yes 2005-01-20T14:11:00Z
US MT University of Montana, Missoula, Montana   Northwest USA, Internet 2 OpenAccess Yes 2005-01-20T14:13:00Z
US MT University of Montana, Missoula, Montana   Northwest USA, Internet 2 OpenAccess Yes 2005-01-20T14:10:00Z
US NC Lenoir, NC BackplaneDNS USA OpenAccess Yes 2017-09-16T05:58:27Z
US NE Lincoln, Nebraska   Central Time Zone OpenAccess No 2012-12-01T21:25:20Z
US NE Lincoln, Nebraska   Central Time Zone OpenAccess No 2012-12-01T21:24:11Z
US NE Lincoln, Nebraska   Central Time Zone OpenAccess No 2012-12-01T21:24:52Z
US NE Lincoln, Nebraska   Central Time Zone OpenAccess No 2012-12-01T21:22:04Z
US NJ Jensen Research Corporation, Ramsey NJ   Eastern US OpenAccess No 2015-07-19T21:01:57Z
US NJ Steadfast, Edison, NJ steadfast.net North America OpenAccess No 2015-11-21T01:19:31Z
US NJ Jensen Research Corporation, Ramsey NJ   Eastern US OpenAccess No 2015-07-19T20:59:12Z
US NJ Newark, NJ   Global OpenAccess No 2017-02-08T23:57:08Z
US NJ Newark, NJ Animine United States RestrictedAccess Yes 2020-03-17T13:37:48Z
US NJ Steadfast, Edison, NJ steadfast.net North America OpenAccess No 2015-11-21T01:19:18Z
US NJ Newark, NJ Linode Global OpenAccess No 2017-02-08T23:57:43Z
US NJ NJ   Eastern US and Canada OpenAccess No 2016-12-29T01:40:55Z
US NV Las Vegas, NV UNLV North America OpenAccess No 2019-12-20T22:31:36Z
US NV Reno, Nevada, USA Sky Fiber Internet Global OpenAccess No 2019-12-20T22:05:18Z
US NV Reno, Nevada, USA Sky Fiber Internet Global OpenAccess No 2017-11-08T19:09:13Z
US NY New York City NTS Capable North America OpenAccess Yes 2020-07-11T07:34:13Z
US NY New York City NTS Capable North America OpenAccess Yes 2020-07-11T07:39:37Z
US NY Morningside Campus, Columbia University, New York, NY   NYSERnet RestrictedAccess No 2018-03-12T18:24:15Z
US NY New York City, New York, United States Roadkills-R-Us Earth OpenAccess No 2017-10-11T02:30:46Z
US NY Cornell University, Ithaca, NY   NYSERNet, NYSERNet 2000, Internet2/Abilene, vBNS OpenAccess Yes 2004-09-24T17:51:37Z
US NY New York City NTS Capable North America OpenAccess Yes 2020-07-11T07:36:01Z
US OH East Main Technology Inc. Troy Ohio East Main Technology Inc. North America OpenAccess Yes 2019-09-08T02:58:21Z
US OH Columbus, Ohio   US Midwestern Region OpenAccess No 2019-12-20T19:23:48Z
US OH Cincinnati, OH   US OpenAccess Yes 2019-12-11T05:52:12Z
US OH Troy, OH East Main Technology Inc. Global OpenAccess Yes 2019-09-08T02:59:20Z
US OR Portland, OR BitSrc PNW USA OpenAccess No 2015-12-05T18:51:10Z
US OR La Grande, OR Eastern Oregon Net, Inc. Pacific Time Zone OpenAccess Yes 2018-09-01T23:25:24Z
US OR La Grande, OR Eastern Oregon Net, Inc. Pacific Time Zone OpenAccess Yes 2018-09-01T23:25:38Z
US PA Penn State University, University Park, PA   Internet, Internet2, PSC/3ROX OpenAccess No 2014-12-04T15:15:19Z
US PA Pittsburgh, PA Thomas Ward Consulting, LLC. North America RestrictedAccess Yes 2019-11-14T00:17:10Z
US PA Pittsburgh Supercomputing Center, Pittsburgh, PA   NSFNET, PSC region OpenAccess Yes 2004-09-24T18:07:56Z
US SD South Dakota, US   US OpenAccess Yes 2016-05-13T00:11:25Z
US TX ThePlanet Datacenter, Dallas, Texas, USA   US Southern Region. OpenAccess No 2013-04-17T23:00:36Z
US TX Boerne, TX GVTC fiber / static IP SAT / TX / US / any OpenAccess No 2020-04-25T14:04:48Z
US TX Dallas, TX, US (DFW) Hosted at Linode US Central (Dallas) Everywhere OpenAccess No 2018-08-10T03:12:14Z
US TX Dallas/Texas Atlantic.Net (https://www.atlantic.net/) North America OpenAccess Yes 2017-02-06T09:29:29Z
US TX Dallas, Texas Smat Web Design US Central time zone OpenAccess No 2017-02-06T17:19:35Z
US TX Texas A&M University, College Station, TX   NSFNET, SESQUI region, THEnet, TAMUSDSN OpenAccess No 2004-09-24T18:27:00Z
US TX Dallas, Texas Smat Web Design US Central time zone OpenAccess No 2017-02-06T17:19:32Z
US UT Salt Lake City, Utah, USA TGB & Pleiades Mountain Time UTC -7 OpenAccess No 2019-12-20T20:23:26Z
US UT Salt Lake City, Utah, USA XMission Rocky Mountain West OpenAccess No 2019-12-20T20:22:56Z
US VA Blacksburg, Virginia, USA Virginia Tech US southeastern region OpenAccess No 2017-02-09T14:22:06Z
US VA Blacksburg, Virginia, USA Virginia Tech US southeastern region OpenAccess No 2017-02-09T14:19:32Z
US VA Northern Virginia, US AWS Any locations acceptable, US-East Time Zone area best OpenAccess Yes 2019-11-08T09:44:02Z
US VA Blacksburg, Virginia, USA Virginia Tech US southeastern region OpenAccess No 2017-02-09T14:18:46Z
US VA Blacksburg, Virginia, USA Virginia Tech US southeastern region OpenAccess No 2017-02-09T14:20:59Z
US VT Williston, VT USA   East Coast, US OpenAccess No 2019-12-20T19:47:38Z
US VT Vermont Agency of Administration, Montpelier   Vermont RestrictedAccess Yes 2004-09-24T19:26:00Z
US VT Vermont Agency of Administration, Montpelier   Vermont RestrictedAccess Yes 2004-09-24T19:22:00Z
US VT Williston, VT USA   East Coast, US OpenAccess No 2019-12-20T19:47:04Z
US VT Vermont Agency of Administration, Montpelier   Vermont RestrictedAccess No 2004-09-24T18:49:00Z
US WA Spokane, WA USA BORGNET dot US North America OpenAccess No 2020-06-25T05:07:12Z
US WI Computer Science Department, University of Wisconsin-Madison   US/any OpenAccess No 2004-09-24T19:47:00Z
US WI Computer Science Department, University of Wisconsin-Madison   US/any OpenAccess No 2004-09-24T19:43:12Z
US WI Netwrx Consulting   Global OpenAccess Yes 2018-08-09T05:26:23Z
UY Rocha, Uruguay CURE - UdelaR Uruguay, South America OpenAccess Yes 2019-12-20T21:38:14Z
UY Rocha, Uruguay Frigorífico Copayan S.A. Uruguay, South America OpenAccess Yes 2019-12-20T21:38:43Z
UY Maldonado, Uruguay CURE - UdelaR Uruguay, South America OpenAccess Yes 2016-01-18T21:01:41Z
UY Montevideo, Uruguay Observatorio Astronómico Los Molinos (OALM) Uruguay, South America OpenAccess Yes 2019-03-18T04:18:32Z
ZA Randpark, Johannesburg, South Africa.   South Africa OpenAccess No 2011-10-13T23:31:46Z
ZA Johannesburg hypr digital Global OpenAccess Yes 2020-01-02T08:58:05Z
ZA Johannesburg hypr digital Global OpenAccess Yes 2020-01-02T08:58:13Z
ZA Durban hypr digital Global OpenAccess Yes 2020-01-02T08:57:57Z

Related topics: RulesOfEngagement, DiscontinuedStratumTwoTimeServers, StratumOneTimeServers, NTPPoolServers, ManagingYourListEntries, SubmittingYourListEntriesViaEmail

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