Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WA7BIO callsign genealogy
Currently held by Cox, David W
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 WA7BIO's current licensee, walking backwards.
- Cox, David WAZgranted 2026-08-01
Successor callsigns
Callsigns held now by people who previously held WA7BIO.
- Cox, David WAZgranted 2026-08-01