Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4MFF callsign genealogy
Currently held by Coffey, Frank A
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 N4MFF's current licensee, walking backwards.
- KB4HBRno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N4MFF.
- Coffey, Frank ATNgranted 2021-11-04