Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF7SJ callsign genealogy
Currently held by BUHLER, D WILLIAM
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 AF7SJ's current licensee, walking backwards.
- BUHLER, D WILLIAMUTgranted 2011-03-15cancelled 2015-07-02
Successor callsigns
Callsigns held now by people who previously held AF7SJ.
No current licensee on record previously held this callsign.