Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1RAD callsign genealogy
Currently held by JOHNSON, C Keith
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 K1RAD's current licensee, walking backwards.
- WIRTH, CHRISTIANCAgranted 2022-06-22cancelled 2022-12-02
Successor callsigns
Callsigns held now by people who previously held K1RAD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1RAD, oldest first.
- JOHNSON, C Keith VT2010-11-11 → cancelled 2022-11-12
- WIRTH, CHRISTIAN CA2022-12-02 active