Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0ON callsign genealogy
Currently held by Showman, Gerald L
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 AB0ON'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 AB0ON.
- Showman, Gerald LIAgranted 2010-08-05cancelled 2022-09-20