Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1MFJ callsign genealogy
Currently held by Joyce, Michael 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 K1MFJ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K1MFJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1MFJ, oldest first.
- BALLATA, JOSEPH N RI1998-11-24 → cancelled 2010-11-25
- Joyce, Michael F MA2025-05-14 active