Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9GDW callsign genealogy
Currently held by Vogler, Michael R
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 KA9GDW's current licensee, walking backwards.
- Vogler, Michael RINgranted 2008-08-28cancelled 2012-03-17
Successor callsigns
Callsigns held now by people who previously held KA9GDW.
No current licensee on record previously held this callsign.