Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0TTW callsign genealogy
Currently held by KEZAR, DONALD G
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 K0TTW's current licensee, walking backwards.
- Mihelich, KevinCOgranted 2021-06-07cancelled 2021-06-26
Successor callsigns
Callsigns held now by people who previously held K0TTW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0TTW, oldest first.
- KEZAR, DONALD G MN1994-10-27 → cancelled 2006-10-28
- Mihelich, Kevin CO2021-06-26 active