Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF3BK callsign genealogy
Currently held by TREGONING, OLLIE M
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 KF3BK's current licensee, walking backwards.
- TREGONING, OLLIE Mcancelled 1998-04-06
Successor callsigns
Callsigns held now by people who previously held KF3BK.
- TREGONING, OLLIE MWVgranted 2014-12-30