Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4MMF callsign genealogy
Currently held by Fisher, Michele 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 KB4MMF's current licensee, walking backwards.
- Fisher, Michele MFLgranted 2020-03-06cancelled 2022-05-03
Successor callsigns
Callsigns held now by people who previously held KB4MMF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4MMF, oldest first.
- ALLEN, MARGARET G SC1995-11-28 → cancelled 2007-11-29
- Fisher, Michele M FL2022-05-03 active