Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK0F callsign genealogy
Currently held by JEWETT, WARREN E
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 KK0F's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KK0F.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK0F, oldest first.
- JEWETT, WARREN E MN2014-05-28 → cancelled 2026-05-29
- Grush, Devin M CO2026-06-26 active