Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KV4MX callsign genealogy
Currently held by NOWLEN, MICHAEL J
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 KV4MX's current licensee, walking backwards.
- NOWLEN, MICHAEL JFLgranted 2006-07-08cancelled 2013-04-26
Successor callsigns
Callsigns held now by people who previously held KV4MX.
- NOWLEN, MICHAEL JFLgranted 2020-09-19