Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JNM callsign genealogy
Currently held by MUNDAY, JOHN N
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 K4JNM's current licensee, walking backwards.
- MUNDAY, JOHN NGAgranted 2011-09-20cancelled 2011-10-14
Successor callsigns
Callsigns held now by people who previously held K4JNM.
- Culver, Victor IVAgranted 2018-10-16
All historical holders
Every license row we've seen with the callsign K4JNM, oldest first.
- MUNDAY, JOHN N GA2021-07-21 active
- CULVER, VICTOR I— → cancelled 1998-11-18