Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KA7DMZ callsign genealogy
Currently held by Olander, Christopher C
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 KA7DMZ's current licensee, walking backwards.
- Olander, Christopher CAZgranted 2019-07-18cancelled 2019-08-09
Successor callsigns
Callsigns held now by people who previously held KA7DMZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA7DMZ, oldest first.
- RUCKER, LARRY R OR1994-03-01 → cancelled 2006-03-02
- Olander, Christopher C AZ2019-08-09 active