Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ0F callsign genealogy
Currently held by SMITH, CHARLES F
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 KJ0F's current licensee, walking backwards.
- DENMAN, PAUL WMNgranted 2014-07-10cancelled 2022-01-05
Successor callsigns
Callsigns held now by people who previously held KJ0F.
- PERSON, DOUGLAS ECOgranted 2019-11-13
All historical holders
Every license row we've seen with the callsign KJ0F, oldest first.
- SMITH, CHARLES F MO2005-11-08 → cancelled 2017-11-29
- PERSON, DOUGLAS E CO2017-12-19 → cancelled 2019-11-13
- Denman, Paul W MN2022-01-05 active