Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5CFY callsign genealogy
Currently held by BROWN, THOMAS 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 K5CFY's current licensee, walking backwards.
- YOUNG, RAYMOND LOKgranted 2008-09-04cancelled 2012-02-07
Successor callsigns
Callsigns held now by people who previously held K5CFY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5CFY, oldest first.
- BROWN, THOMAS J OK2003-07-29 → cancelled 2010-02-17
- YOUNG, RAYMOND L OK2022-01-06 active