Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4JM callsign genealogy
Currently held by Moscatello, John
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 KJ4JM's current licensee, walking backwards.
- Moscatello, JohnFLgranted 2015-03-03cancelled 2015-04-21
Successor callsigns
Callsigns held now by people who previously held KJ4JM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KJ4JM, oldest first.
- WALTERS, JAMES D FL1999-09-21 → cancelled 2011-12-13
- Moscatello, John FL2015-04-21 active