Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF6WO callsign genealogy
Currently held by RIDDLE, JOHN A
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 AF6WO's current licensee, walking backwards.
- RIDDLE, JOHN ACAgranted 2009-07-02cancelled 2010-04-28
Successor callsigns
Callsigns held now by people who previously held AF6WO.
- RIDDLE, JOHN ACAgranted 2020-02-22