Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4YD callsign genealogy
Currently held by Sowles, Walter J
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 AF4YD's current licensee, walking backwards.
- SOWLES, WALTER JMIgranted 1997-03-07cancelled 2000-06-10
- KC8FFSno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AF4YD.
No current licensee on record previously held this callsign.