Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7RJM callsign genealogy
Currently held by Mathewson, 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 K7RJM's current licensee, walking backwards.
- Mathewson, Robert JNVgranted 2004-08-18cancelled 2005-02-12
Successor callsigns
Callsigns held now by people who previously held K7RJM.
No current licensee on record previously held this callsign.