Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC2F callsign genealogy
Currently held by DUDLEY, DON 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 KC2F's current licensee, walking backwards.
- ADAMS, JOHN VNYgranted 2003-07-03cancelled 2010-04-20
Successor callsigns
Callsigns held now by people who previously held KC2F.
- Yokouchi, ToshitakaMPgranted 2017-09-16
All historical holders
Every license row we've seen with the callsign KC2F, oldest first.
- DUDLEY, DON J MA1995-10-26 → cancelled 2006-08-22
- Yokouchi, Toshitaka NY2006-11-17 → cancelled 2007-12-11
- ADAMS, JOHN V OR2020-01-29 active