Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4MTJ callsign genealogy
Currently held by Johnson, Mark
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 N4MTJ's current licensee, walking backwards.
- Johnson, MarkALgranted 2022-11-08cancelled 2022-11-26
Successor callsigns
Callsigns held now by people who previously held N4MTJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4MTJ, oldest first.
- ABBOTT, JEANETTE C NC1995-06-29 → cancelled 2007-07-01
- Johnson, Mark AL2022-11-26 active