Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0MKE callsign genealogy
Currently held by CHERMAK, WILLIAM J
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 K0MKE's current licensee, walking backwards.
- Seipp, Michael RCOgranted 2017-11-21cancelled 2018-01-06
Successor callsigns
Callsigns held now by people who previously held K0MKE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0MKE, oldest first.
- CHERMAK, WILLIAM J MN1995-11-28 → cancelled 2007-11-29
- Seipp, Michael R CO2018-01-06 active