Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4MN callsign genealogy
Currently held by Gurka, Charles F
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 N4MN's current licensee, walking backwards.
- COX, ROBERT MNCgranted 2015-08-12cancelled 2016-04-01
Successor callsigns
Callsigns held now by people who previously held N4MN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4MN, oldest first.
- Gurka, Charles F CA2004-03-12 → cancelled 2016-03-15
- COX, ROBERT M NC2026-02-07 active