Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6KGW callsign genealogy
Currently held by Koffler, Michael 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 K6KGW's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K6KGW.
- Koffler, Michael WCAgranted 2017-12-29
All historical holders
Every license row we've seen with the callsign K6KGW, oldest first.
- Koffler, Michael W CA2005-04-29 → cancelled 2008-03-22
- Kunowsky, Charles J NM2020-08-28 active