time-a.nist.gov
129.6.15.28
NIST, Gaithersburg, Maryland
time-b.nist.gov
129.6.15.29
NIST, Gaithersburg, Maryland
time-a.timefreq.bldrdoc.gov
132.163.4.101
NIST, Boulder, Colorado
time-b.timefreq.bldrdoc.gov
132.163.4.102
NIST, Boulder, Colorado
time-c.timefreq.bldrdoc.gov
132.163.4.103
NIST, Boulder, Colorado
utcnist.colorado.edu
128.138.140.44
University of Colorado, Boulder
time.nist.gov
192.43.244.18
NCAR, Boulder, Colorado
nist1.datum.com
209.0.72.7
Datum, San Jose, California
nist1.nyc.certifiedtime.com
208.184.49.129
Abovnet, New York City
nist1.sjc.certifiedtime.com
207.126.103.202
Abovnet, San Jose, California