Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KA7SWM callsign genealogy
Currently held by PITKA, THOMAS 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 KA7SWM's current licensee, walking backwards.
- Muller, StephenORgranted 2016-04-08cancelled 2018-05-15
Successor callsigns
Callsigns held now by people who previously held KA7SWM.
- Muller, StephenORgranted 2022-05-24
All historical holders
Every license row we've seen with the callsign KA7SWM, oldest first.
- PITKA, THOMAS C OR1994-06-15 → cancelled 2006-06-16
- Muller, Stephen OR2018-05-15 → cancelled 2022-05-24