Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0FX callsign genealogy
Currently held by BREEDEN, WILLIAM B
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 AB0FX'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 AB0FX.
- BREEDEN, WILLIAM BMSgranted 2018-11-10