Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN7JCB callsign genealogy
Currently held by Butson, Jeffrey
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 KN7JCB's current licensee, walking backwards.
- Butson, JeffreyWAgranted 2023-05-19cancelled 2023-06-06
Successor callsigns
Callsigns held now by people who previously held KN7JCB.
No current licensee on record previously held this callsign.