Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA7BOI callsign genealogy
Currently held by Puderbaugh, Stewart 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 KA7BOI's current licensee, walking backwards.
- Puderbaugh, Stewart LIDgranted 2018-08-16cancelled 2021-12-03
Successor callsigns
Callsigns held now by people who previously held KA7BOI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA7BOI, oldest first.
- SODANO, MICHAEL C AZ1988-08-02 → cancelled 2000-08-03
- Puderbaugh, Stewart L ID2021-12-03 active