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
KO4NIV
Valid
Harry W Mattox
License type
Person
Operator class
Technician
Granted
03/23/2021
Expires
03/23/2031
Previous call sign
KO4NIV

FCC License Page QRZ.com Page DMR ID on RadioID

Nothing on this site carries KO4NIV yet (no repeater, APRS station, feeder, weather station or receiving station).

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).