Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6NBC callsign genealogy
Currently held by VANDERKLIS SR, PIETER 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 K6NBC's current licensee, walking backwards.
- Stockwell, William LCAgranted 2003-05-01cancelled 2003-05-30
Successor callsigns
Callsigns held now by people who previously held K6NBC.
- VANDERKLIS SR, PIETER JCAgranted 2020-11-04
All historical holders
Every license row we've seen with the callsign K6NBC, oldest first.
- VANDERKLIS SR, PIETER J CA1998-11-12 → cancelled 2001-01-20
- Stockwell, William L CA2023-03-10 active