Below is the list of publickly accessible NTP time servers located in Poland, along with their hostnames, IP addresses, Stratum levels, AS numbers and contact information.
List consists of trustworthy sources such as government agencies, scientific organizations, ISPs or major infrastructure providers. STRATUM 1 and 2.
If you're looking to use any of those NTP servers in business-critical production environment, please consider obtaining time from a time source directly, e.g. via GPS receiver or caesium atomic clock.
| Host organization | Hostname(s) | IPv4 | IPv6 | STRATUM | ASN | Contact information |
|---|---|---|---|---|---|---|
| Główny Urząd Miar (Central Office of Measures) | tempus1.gum.gov.pl tempus2.gum.gov.pl |
194.146.251.100 194.146.251.101 |
N/A | 1 | AS50606 | time@gum.gov.pl |
| NASK (Research and Academic Computer Network) | ntp.nask.pl |
195.187.245.55 |
N/A | 1 | AS8308 | nask@nask.pl |
| Orange Polska (Orange Poland) | ntp1.tp.pl ntp2.tp.pl ntp1.orange.pl ntp2.orange.pl ntp3.orange.pl |
80.50.231.226 212.160.106.226 80.50.102.114 80.50.102.206 80.50.102.126 |
2a01:1102::b:0:0:0:2 2a01:1100:3::2 |
1 | AS5617 | N/A |
| Uniwersytet Warszawski (University of Warsaw) | ntp1.icm.edu.pl ntp2.icm.edu.pl |
213.135.57.60 193.219.28.60 |
2001:6a0::2000:0:0:0:60 2001:6a0::2002:0:0:0:60 |
2 | AS8664 | sekretariat@icm.edu.pl |
| Instytut Łączności (National Institute of Telecommunications) | ntp.itl.waw.pl |
193.110.137.171 |
N/A | 1 | AS24597 | info@il-pib.pl |
| Centrum Badań Kosmicznych PAN (Space Research Centre of Polish Academy of Sciences) | vega.cbk.poznan.pl |
150.254.190.51 |
N/A | 1 | AS9112 | cbk@cbk.waw.pl |
| Uniwersytet Mikołaja Kopernika w Toruniu (Nicolaus Copernicus University in Toruń) | time.umk.pl |
158.75.5.245 |
N/A | 1 | AS12423 | contact@umk.pl |
| Politechnika Warszawska (Warsaw University of Technology) | ntp.coi.pw.edu.pl |
194.29.130.252 |
N/A | 1 | AS12464 | cwm@cwm.pw.edu.pl |
| Uniwersystet im. Adama Mickiewicza w Poznaniu (Adam Mickiewicz University in Poznań) | ntp.amu.edu.pl ntp2.amu.edu.pl |
150.254.65.61 150.254.65.62 |
N/A | 2 | AS9112 | dwz@amu.edu.pl |
| Politechnika Gdańska (Gdańsk University of Technology) | ntp.task.gda.pl |
153.19.250.123 |
N/A | 2 | AS5550 | noc@task.gda.pl |
| Obserwatorium Astronomiczne Uniwersytetu Jagiellońskiego (Astronomical Observatory of the Jagiellonian University) | ntp.oa.uj.edu.pl |
149.156.70.75 |
N/A | 1 | AS8267 | N/A |
| EPIX | ntp.epix.net.pl |
217.117.135.170 188.241.28.254 |
N/A | 1 | AS206186 | info@epix.net.pl |
| Beyond.pl | ntp.beyond.pl 0.ntp.beyond.pl 1.ntp.beyond.pl 2.ntp.beyond.pl |
91.102.113.48 109.205.49.8 109.205.50.68 185.23.20.212 |
N/A | 1 and 2 | AS31229 | office@beyond.pl |
| Comarch | ntp.comarch.pl |
91.227.212.78 |
N/A | 2 | AS57305 | info@comarch.pl |