| time.windows.com | Microsoft.com Worldwide | Internationaal |
| ptbtime1.ptb.de | Physikalisch-Technische Bundesanstalt (PTB) | Duitsland |
| ptbtime2.ptb.de | Physikalisch-Technische Bundesanstalt (PTB) | Duitsland |
| swisstime.ethz.ch | Eidgenössische Technische Hochschule Zürich | Zwitserland |
| time.chu.nrc.ca | National Research Council of Canada | Noord Amerika |
| time-a.nist.gov | National Institute of Standards and Technology | de Verenigde Staten van Amerika |
| time-a.timefreq.bldrdoc.gov | NIST Boulder Laboratories | de Verenigde Staten van Amerika |
| time-b.nist.gov | National Institute of Standards and Technology | de Verenigde Staten van Amerika |
| time-b.timefreq.bldrdoc.gov | NIST Boulder Laboratories | de Verenigde Staten van Amerika |
| time-c.timefreq.bldrdoc.gov | NIST Boulder Laboratories | de Verenigde Staten van Amerika |
| time.nist.gov | National Institute of Standards and Technology | de Verenigde Staten van Amerika |
| ntp.cais.rnp.br | Brazilian Research Network | Zuid Amerika |
| tick.nap.com.ar | Network Access Point, Buenos Aires, Argentina | Zuid Amerika |
| clock.tl.fukuoka-u.ac.jp | University of Fukuoka, Japan | Azië |
| cn.pool.ntp.org | NTP Pool Project, China | Azië |
| time.nuri.net | Inet Inc., Seoul, Korea | Azië |
| augean.eleceng.adelaide.edu.au | The University of Adelaide | Australië |
| ntp.cs.mu.oz.au | The University of Melbourne | Australië |
| za.pool.ntp.org | NTP Pool Project, South Africa | Afrika |