Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4NMO callsign genealogy
Currently held by Watson, Charles B
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 K4NMO's current licensee, walking backwards.
- Watson, Charles BVAgranted 2012-12-20cancelled 2013-02-23
Successor callsigns
Callsigns held now by people who previously held K4NMO.
No current licensee on record previously held this callsign.