Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB0YO callsign genealogy
Currently held by BARR, BRUCE W
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 AB0YO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB0YO.
No current licensee on record previously held this callsign.