Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4WBF callsign genealogy
Currently held by Treubig, Stephen C
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 K4WBF's current licensee, walking backwards.
- Treubig, Stephen CALgranted 2002-11-20cancelled 2003-07-22
Successor callsigns
Callsigns held now by people who previously held K4WBF.
No current licensee on record previously held this callsign.