Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0HJC callsign genealogy
Currently held by Graham, Keith M
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K0HJC's current licensee, walking backwards.
- Graham, Thomas GIAgranted 2012-02-17cancelled 2013-12-10
Successor callsigns
Callsigns held now by people who previously held K0HJC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0HJC, oldest first.
- Graham, Keith M MN2003-10-10 → cancelled 2011-12-21
- Graham, Thomas M IA2024-05-29 active