Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5JMK callsign genealogy
Currently held by TOWNLEY, CHARLES 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 N5JMK's current licensee, walking backwards.
- Korzendorfer, Jason MARgranted 2023-07-11cancelled 2023-08-04
Successor callsigns
Callsigns held now by people who previously held N5JMK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5JMK, oldest first.
- TOWNLEY, CHARLES E TX1987-10-20 → cancelled 1999-10-21
- Korzendorfer, Jason M AR2023-08-04 active