Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5JNM callsign genealogy
Currently held by HENSON, JOHN R
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 K5JNM's current licensee, walking backwards.
- Martin, Jeffrey NTXgranted 2017-11-30cancelled 2018-04-24
Successor callsigns
Callsigns held now by people who previously held K5JNM.
- Martin, Jeffrey NTXgranted 2018-04-24cancelled 2022-12-17
All historical holders
Every license row we've seen with the callsign K5JNM, oldest first.
- HENSON, JOHN R OK2006-01-10 → cancelled 2018-01-11
- Martin, Jeffrey N TX2018-04-24 → cancelled 2022-11-02