Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4NXB callsign genealogy
Currently held by Robinson Jr, Richard 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 KM4NXB's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KM4NXB.
- Robinson Jr, Richard FSCgranted 2026-04-09