ErichKolb.com

Europe
• Borowiec, Poland: Astrogeodynamical Observatory, Space Research Centre
150.254.183.15: vega.cbk.poznan.pl
Service Area: Poland and Europe
• Stockholm, Sweden: Stupi AB
192.36.143.151: Time2.Stupi.SE
Service Area: Europe
• Torino, Italy: IEN Galileo Ferraris
193.204.114.1: time.ien.it
Service Area: Italy and Europe
• Zurich, Switzerland: Integrated Systems Lab, Swiss Fed. Inst. of Technology
129.132.2.21: swisstime.ethz.ch
Service Area: Switzerland and Europe
• Torino, Italy: CSTV of National Research Council
150.145.33.1: tempo.cstv.to.cnr.it
Service Area: Italy and Europe
• Erlangen, Germany: University Erlangen-Nuernberg
ntp0.fau.de; ntp1.fau.de; ntp2.fau.de;
ntps1-0.uni-erlangen.de; ntps1-1.uni-erlangen.de; ntps1-2.uni-erlangen.de
Service Area: Germany and Europe
• Berlin, Germany: Technische Universitaet Berlin
130.149.17.21: ntps1-0.cs.tu-berlin.de
130.149.17.8: ntps1-1.cs.tu-berlin.de
Service Area: Germany and Europe
• Germany
131.173.17.7: ntps1-1.rz.Uni-Osnabrueck.DE
Service Area: Germany and Europe
• Sweden
192.36.143.150: Time1.Stupi.SE
Service Area: SUnet and NORDUnet Sweden

East Asia and Pacific Rim
• Hong Kong: The Chinese University of Hong Kong.
137.189.6.18: clock.cuhk.edu.hk
Service Area: Hong Kong, China, and South East Asia
• Fukuoka, Japan: Fukuoka University
133.100.9.2: clock.nc.fukuoka-u.ac.jp
133.100.11.8: clock.tl.fukuoka-u.ac.jp
Service Area: Japan and Pacific area

Australia
• Melbourne Australia: The University of Melbourne
128.250.36.2: ntp.cs.mu.OZ.AU
Service area: Australia and New Zealand

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Level-Two Time Servers
Arranged by geographic location:
North America
NTP time servers: • Quebec, Canada: Canadian Meteorological Center
ntp1.cmc.ec.gc.ca; ntp2.cmc.ec.gc.ca
Service Area: Eastern Canada
• Ontario, Canada: National Research Council of Canada
time.chu.nrc.ca; time.nrc.ca
Service Area: Canada
• Saskatchewan, Canada: University of Regina
142.3.100.15: timelord.uregina.ca
Service Area: Canada
• Ontario, Canada: University of Toronto
tick.utoronto.ca; tock.utoronto.ca
Service Area: Eastern Canada
• Mexico: Audiotel office
ntp2a.audiotel.com.mx; ntp2c.audiotel.com.mx; ntp2b.audiotel.com.mx
Service Area: Avantel, MCINet, and Mexico
• Santa Cruz, CA: Scruz-net, inc.
165.227.1.1: ns.scruz.net
Service area: Western U.S.
• San Diego, CA: UCSD Academic Computing Services/Network Operations
132.239.254.49: ntp.ucsd.edu
Service Area: CERFNET; NSFNET, SDSC region, and nearby
• Quincy, California
ntp1.mainecoon.com; ntp2.mainecoon.com
Service Area: North America
• Newark, DE: University of Delaware
128.175.1.3: louie.udel.edu
Service Area: CAIRN, Abilene, and vBNS
• Atlanta, GA: CNSG
ntp.shorty.com
Service Area: Southeast U.S.
• Kennesaw, GA: PeachNet
rolex.peachnet.edu; timex.peachnet.edu
Service Area: PeachNet (Georgia) and Southeast U.S.
• Urbana-Champaign, IL: University of Illinois
ntp-0.cso.uiuc.edu; ntp-1.cso.uiuc.edu; ntp-2.cso.uiuc.edu
Service Area: CICNET, Midwest, and NCSA region
• Chicago, IL: Argonne National Laboratory
ntp-1.mcs.anl.gov; ntp-2.mcs.anl.gov
Service Area: NSF/ANSNet, CICNet, NetIllinois, and ESNet
• West Lafayette, IN: Purdue University
gilbreth.ecn.purdue.edu; harbor.ecn.purdue.edu; molecule.ecn.purdue.edu
Service area: NSFNET and CICNET area
• Manhattan, KS: KansasNet OnLine Services
199.240.130.1: ntp1.kansas.net
199.240.130.12: ntp2.kansas.net
Service area: Central U.S. and Great Plains
• Boston, MA: UMass-Boston CS dept.
158.121.104.4: timeserver.cs.umb.edu
Service Area: New England
• Minneapolis/St Paul, MN: University of Minnesota
ns.nts.umn.edu; nss.nts.umn.edu
Service Area: CICNET region
• Columbia, MO: University of Missouri-Columbia
128.206.206.12: everest.cclabs.missouri.edu
Service Area: MOREnet
• Omaha, NE: Radiks Internet Access
205.138.126.83: allison.radiks.net
Service Area: Midwest U.S.
• Las Vegas, NV: University of Nevada System Computing Services
131.216.1.101: cuckoo.nevada.edu
Service Area: NevadaNet, NSFNET, and SDSC region
• Las Vegas, NV: UNLV College of Engineering
tick.cs.unlv.edu; tock.cs.unlv.edu
Service Area: Sprintnet
• New York City, NY: Columbia University
ntp.ctr.columbia.edu
Service Area: Sprintlink and NYSERnet
• Ithaca, NY: Cornell University
192.35.82.50: ntp0.cornell.edu
Service Area: NSFNET and NYSER region
• New York, NY: Morningside Campus, Columbia University
sundial.columbia.edu
Service Area: NYSERnet
• New York City, NY: Columbia University Computer Science Department
timex.cs.columbia.edu
Service Area: PSINET; NSFNET, and NYSER region
• Norman, Oklahoma: University of Oklahoma
129.15.22.8: constellation.ecn.uoknor.edu
Service Area: Midnet
• Coos Bay, OR: Koala Computers
207.48.109.6: tick.koalas.com
Service Area: Northwestern U.S.
• University Park, PA: Penn State University
128.118.25.3: clock.psu.edu
Service Area: Internet2, vBNS, CERFnet(AT&T IP Services), PSC/NCNE, and CASC
• Pittsburgh, PA: Pittsburgh Supercomputing Center
128.182.58.100: fuzz.psc.edu
Service area: NSFNET and PSC region
• Pittsburgh, PA: Carnegie Mellon Electrical and Computer Engineering
ntp-1.ece.cmu.edu; ntp-2.ece.cmu.edu
Service Area: PREPNET and PSC region
• Dallas, TX: Cox School of Business, Southern Methodist University
129.119.80.126: ntp.cox.smu.edu
Service Area: NSFNET and SESQUI region
• Hughes Springs, TX: First National Bank
209.144.20.76: ntp.fnbhs.com
Service area: Northeast Texas
• Houston, Tx: Baylor College of Medicine
128.249.1.10: ntp.tmc.edu
Service Area: NSFNET and SESQUI region
• College Station, TX: Texas A&M University
165.91.52.110: ntp5.tamu.edu
Service area: NSFNET, SESQUI region, THEnet, and TAMUSDSN
• Plano, TX: Greyware Automation Products
tick.greyware.com; tock.greyware.com
Service Area: South-Central U.S.
• Blacksburg, VA: Virginia Tech Computing Center
ntp-1.vt.edu; ntp-2.vt.edu
Service Area: Southeast U.S.
• Arlington, VA: Center for Seismic Studies
140.162.1.3: ntp.cmr.gov
Service Area: NSFNET and SURA region
• Richland, WA: Washington State University
192.31.216.30: clock.tricity.wsu.edu
Service Area: NSFNET and NorthWestNet
• Washington, U.S.: Mill Creek
time.ultimeth.net
Service Area: Northwest U.S.
• Wisconsin, U.S.: Computer Science Department, University of Wisconsin-Madison
ntp1.cs.wisc.edu; ntp2.cs.wisc.edu; ntp3.cs.wisc.edu
Service Area: U.S. and any

South America
• Buenos Aires, Argentina: Network Access Point
200.49.40.1: CNAME: tick.nap.com.ar
200.49.32.1: CNAME: tock.nap.com.ar
Service Area: Argentina
• Buenos Aires, Argentina: Sinectis S.A.
time.sinectis.com.ar
Service Area: Argentina
• Brazil: Brazilian Research Network
200.144.121.33: ntp.cais.rnp.br
Service Area: Brazil
• Venezuela: VELUG, Grupo de Usuarios Linux de Venezuela
150.185.192.250: ntp.linux.org.ve
Service Area: Arica

Europe
• Zurich, Switzerland: Swiss Fed. Inst. of Technology
129.132.98.11: bernina.ethz.ch
Service Area: Switzerland and Europe
• Location: Copenhagen, Denmark, Europe
clock.netcetera.dk; clock2.netcetera.dk
Service area: Denmark, Scandinavia, and Northern Europe
• Spain: Altea
slug.ctv.es
Service Area: Spain
• Pieksamaki, Finland: Keski-Savon Oppimiskeskus
tick.keso.fi; tock.keso.fi
Service area: Finland
• Meudon, France: Observatoire de Paris-Meudon
ntp.obspm.fr
Service Area: France and Europe
• Lyon, France: CISM
ntp.univ-lyon1.fr
Service Area: France, Switzerland, Italy, and Europe
• Paris, France: VIA, Ecole Centrale
138.195.130.70: ntp.via.ecp.fr
Service Area: France and Europe
• Budapest, Hungary: KFKI Research Institute for Particle and Nuclear Physics
148.6.0.1: time.kfki.hu
Service Area: HUNGARNET
• Italy: Net4u Srl, Vercelli, Italy
195.32.52.129: ntps.net4u.it
Service area: Italy
• Oslo, Norway: University of Oslo
129.240.64.3: fartein.ifi.uio.no
Service Area: NORDUnet
• Oslo, Norway: Alcanet International
time.alcanet.no
Service Area: Europe
• Krakow, Poland: Academic Computer Centre
149.156.4.11: info.cyf-kr.edu.pl
Service Area: Poland and Europe
• Lund, Sweden: Lund Institute of Technology
130.235.20.3: ntp.lth.se
Service Area: Sweden and NORDUnet
• Ljubljana, Slovenia: Institute of Biophysics, University of Ljubljana
biofiz.mf.uni-lj.si 193.2.69.11
Service Area: Slovenia and Europe
• Ljubljana, Slovenia: Hydrometeorological Institute of Slovenia
hmljhp.rzs-hm.si
Service Area: Slovenia and Europe
• Ljubljana, Slovenia: Academic and Research Network of Slovenia
ntp1.arnes.si; ntp2.arnes.si
Service Area: Slovenia and Europe
• Ljubljana, Slovenia: J. Stefan Institute
time.ijs.si
Service Area: Slovenia and Europe

British Isles
• Dublin, Ireland: School of Mathematics, Trinity College
ntp.cs.tcd.ie; ntp.maths.tcd.ie; ntp.tcd.ie
Service Area: Ireland and U.K.
• Glasgow, Scotland: Strathclyde University
ntp.cs.strath.ac.uk
Service Area: U.K., Europe, and any
• Cambridge, U.K.
ntp0.uk.uu.net; ntp1.uk.uu.net;
ntp2.uk.uu.net
Service Area: UUNET (formerly known in the U.K. as PIPEX) and U.K.
• Manchester, England: University of Manchester
ntp2a.mcc.ac.uk; ntp2b.mcc.ac.uk;
ntp2c.mcc.ac.uk; ntp2d.mcc.ac.uk
Service Area: U.K.
• Buckinghamshire U.K.: Wibble U.K., Aylesbury
tick.tanac.net
Service area: U.K.

Asia
• Moscow, Russia: Landau Institute for Theoretical Physics
193.233.9.7: ntp.landau.ac.ru
Service area: Russia
• Russia: Pushchino (near Moscow)
194.149.67.130: ntp.psn.ru
Service area: Russia
• Chernogolovka, Russia: Chernogolovka Scientific Center (near Moscow)
193.233.46.10: sign.chg.ru
Service Area: Russia

East Asia and Pacific Rim
• Tokyo, Japan: Cyber Fleet, Inc.
203.139.30.195: ntp.cyber-fleet.net
Service Area: Japan and East Asia
• Seoul, Korea: Inet, Inc.
time.nuri.net
Service Area: Korea, Japan, Hong Kong, and East Asia
• Hamilton, New Zealand: The University of Waikato
truechimer.waikato.ac.nz; truechimer1.waikato.ac.nz;
truechimer2.waikato.ac.nz; truechimer3.waikato.ac.nz
Service Area: New Zealand
• Singapore and the Philippines:
ntp.shim.org
Service Area: Singapore

Africa
• Lagos, Nigeria: Supernet300
ntp.supernet300.com
Service Area: Western Africa (primarily Nigerian NITEL backbone)
• Pietermaritzburg, South Africa: Natal University
143.128.82.200: ntp.cs.unp.ac.za
Service area: South Africa