Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MMJ callsign genealogy
Currently held by James, Maurice T
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 K4MMJ's current licensee, walking backwards.
- James, Maurice TVAgranted 2020-01-13cancelled 2020-05-15
Successor callsigns
Callsigns held now by people who previously held K4MMJ.
No current licensee on record previously held this callsign.