Call Signs, Contacts and Talkgroups

Look up a US amateur call sign, find a DMR contact, or see the talkgroups repeaters use, all in one place.
Call Sign LookupDMR ContactsTalkgroups
KN4JTB
Valid
Carlos Rotellar
License type
Person
Operator class
General
Grid square
EM66 (the first four characters only)
Granted
02/14/2018
Expires
02/14/2028

FCC License Page QRZ.com Page DMR ID on RadioID

Everything We Know About KN4JTB On This Site
Sonde receiving station
KN4JTB
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Only the licensee's name, class, status, dates and city and state are shown, never a street address. License data: FCC public records through Callook.info. QRZ.com opens in a new tab (its own terms and any sign-in apply).