Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3FOC callsign genealogy
Currently held by STURGIS JR, CORRELL
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 K3FOC's current licensee, walking backwards.
- Endo, TetsuyaCAgranted 2010-12-22cancelled 2011-01-22
Successor callsigns
Callsigns held now by people who previously held K3FOC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3FOC, oldest first.
- STURGIS JR, CORRELL PA1992-03-17 → cancelled 2004-03-18
- Endo, Tetsuya OR2021-01-27 active