Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7MFC callsign genealogy
Currently held by Callahan, Matthew F
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 K7MFC's current licensee, walking backwards.
- Callahan, Matthew FAZgranted 2017-12-04cancelled 2017-12-27
Successor callsigns
Callsigns held now by people who previously held K7MFC.
No current licensee on record previously held this callsign.