Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI0QW callsign genealogy
Currently held by Thoma, Robert W
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 KI0QW's current licensee, walking backwards.
- THOMA, ROBERT WMOgranted 1994-07-09cancelled 1999-09-23
Successor callsigns
Callsigns held now by people who previously held KI0QW.
- THOMA, ROBERT WMOgranted 2023-03-01