Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ5M callsign genealogy
Currently held by KING, A. 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 KJ5M's current licensee, walking backwards.
- PALMER, CHARLES STNgranted 1991-09-17cancelled 2000-06-06
Successor callsigns
Callsigns held now by people who previously held KJ5M.
- KING, JOHN ATXgranted 2007-05-25cancelled 2019-08-22
All historical holders
Every license row we've seen with the callsign KJ5M, oldest first.
- PALMER, CHARLES S MS2020-03-24 active
- KING, A. JOHN— → cancelled 1997-08-21