Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7TFS callsign genealogy
Currently held by MAUNU, THOMAS 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 K7TFS's current licensee, walking backwards.
- Collett, Karl GAZgranted 2015-04-02cancelled 2016-10-01
Successor callsigns
Callsigns held now by people who previously held K7TFS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7TFS, oldest first.
- MAUNU, THOMAS L AZ1990-02-27 → cancelled 2002-03-07
- Collett, Karl G AZ2016-10-01 active