Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4VIO callsign genealogy
Currently held by BORDELEAU, STEPHEN
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 K4VIO's current licensee, walking backwards.
- BORDELEAU, STEPHENGAgranted 2020-09-15cancelled 2020-10-03
Successor callsigns
Callsigns held now by people who previously held K4VIO.
No current licensee on record previously held this callsign.