Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MTZ callsign genealogy
Currently held by CHRISTOFFERSON, GEORGE 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 K6MTZ's current licensee, walking backwards.
- Fisher, Steve BCAgranted 2009-06-25cancelled 2009-12-29
Successor callsigns
Callsigns held now by people who previously held K6MTZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6MTZ, oldest first.
- CHRISTOFFERSON, GEORGE J CA1996-11-29 → cancelled 2008-12-02
- FISHER, STEVE B CA2019-10-24 active