Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7FAL callsign genealogy
Currently held by DETTMER, MICHAEL L
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 KC7FAL's current licensee, walking backwards.
- BUNCH, BARRY NAZgranted 2016-02-18cancelled 2016-03-08
Successor callsigns
Callsigns held now by people who previously held KC7FAL.
- DETTMER, MICHAEL LWYgranted 2020-11-04
All historical holders
Every license row we've seen with the callsign KC7FAL, oldest first.
- DETTMER, MICHAEL L WY1994-10-26 → cancelled 2000-12-16
- BUNCH, BARRY N AZ2026-01-24 active