Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC6ZXK callsign genealogy
Currently held by DAVIS, JEFFERSON O
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 KC6ZXK's current licensee, walking backwards.
- Davis, JeffCAgranted 2021-09-07cancelled 2021-09-28
Successor callsigns
Callsigns held now by people who previously held KC6ZXK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6ZXK, oldest first.
- DAVIS, JEFFERSON O CA2002-03-18 → cancelled 2014-02-12
- Davis, Jeff CA2021-09-28 active