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
KM4ACK
Valid
Jason A Oleham
License type
Person
Operator class
Extra
Grid square
EM65 (the first four characters only)
Granted
01/13/2024
Expires
04/10/2034

FCC License Page QRZ.com Page DMR ID on RadioID

Everything We Know About KM4ACK On This Site
Sonde receiving station
KM4ACK-2
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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).