Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4CRX callsign genealogy
Currently held by PRESTON, BRIAN 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 KF4CRX's current licensee, walking backwards.
- CLARKE, AARON RVAgranted 2020-11-17cancelled 2022-04-29
Successor callsigns
Callsigns held now by people who previously held KF4CRX.
- Clarke, Aaron RVAgranted 2025-05-06
All historical holders
Every license row we've seen with the callsign KF4CRX, oldest first.
- PRESTON, BRIAN W KY2005-05-23 → cancelled 2017-08-22
- Clarke, Aaron R VA2022-04-29 → cancelled 2025-05-06