Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4JMA callsign genealogy
Currently held by Pennebaker, Andrew E
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 N4JMA's current licensee, walking backwards.
- Pennebaker, Andrew EWIgranted 2022-01-10cancelled 2022-01-29
Successor callsigns
Callsigns held now by people who previously held N4JMA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4JMA, oldest first.
- ANDREWS, JANET M VA2006-03-07 → cancelled 2018-03-08
- Pennebaker, Andrew E WI2022-01-29 active