Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF1O callsign genealogy
Currently held by SATO, TAKAO
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 AF1O's current licensee, walking backwards.
- Bussey, Edmund BCAgranted 2003-05-28cancelled 2007-10-12
Successor callsigns
Callsigns held now by people who previously held AF1O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AF1O, oldest first.
- SATO, TAKAO RI1994-04-05 → cancelled 2006-04-06
- Bussey, Edmund B CA2018-02-21 active