Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4XB callsign genealogy
Currently held by BROWN PhD, BRIAN R
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 AJ4XB's current licensee, walking backwards.
- BROWN, BRIAN RTNgranted 2005-05-25cancelled 2010-03-22
Successor callsigns
Callsigns held now by people who previously held AJ4XB.
No current licensee on record previously held this callsign.