Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4BJ callsign genealogy
Currently held by Jourdain, William 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 AB4BJ's current licensee, walking backwards.
- Jourdain, William FGAgranted 2001-03-12cancelled 2007-06-05
Successor callsigns
Callsigns held now by people who previously held AB4BJ.
No current licensee on record previously held this callsign.