Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7RJC callsign genealogy
Currently held by Culbertson, Robert J
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 KB7RJC's current licensee, walking backwards.
- Culbertson, Robert JAZgranted 2018-08-03cancelled 2018-08-31
Successor callsigns
Callsigns held now by people who previously held KB7RJC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7RJC, oldest first.
- BLACKWELL, ALAN M WA2003-05-10 → cancelled 2015-05-12
- Culbertson, Robert J AZ2018-08-31 active