Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4AGS callsign genealogy
Currently held by Guminski, Michael S
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 K4AGS's current licensee, walking backwards.
- Guminski, Michael SGAgranted 2021-01-20cancelled 2021-06-15
Successor callsigns
Callsigns held now by people who previously held K4AGS.
No current licensee on record previously held this callsign.