Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM5SF callsign genealogy
Currently held by BROWN, DOUGLAS E
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 KM5SF's current licensee, walking backwards.
- BROWN, DOUGLAS Ecancelled 1998-08-11
Successor callsigns
Callsigns held now by people who previously held KM5SF.
- BROWN, DOUGLAS ETXgranted 2021-04-03