Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4XIR callsign genealogy
Currently held by ISOM, WILLIAM E
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 N4XIR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4XIR.
No current licensee on record previously held this callsign.