Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB5QFS callsign genealogy
Currently held by COX, FRANK N
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 KB5QFS's current licensee, walking backwards.
- Cox, Frank NTXgranted 2014-02-10cancelled 2014-03-04
Successor callsigns
Callsigns held now by people who previously held KB5QFS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB5QFS, oldest first.
- COX, FRANK N TX1991-08-20 → cancelled 2003-08-21
- Cox, Frank N TX2024-03-30 active