Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0BKW callsign genealogy
Currently held by KNICKERBOCKER, GEORGE H
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 K0BKW's current licensee, walking backwards.
- Oliver, GaryMNgranted 2023-03-13cancelled 2023-05-09
Successor callsigns
Callsigns held now by people who previously held K0BKW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0BKW, oldest first.
- KNICKERBOCKER, GEORGE H MO1996-02-29 → cancelled 2008-02-29
- Oliver, Gary MN2023-05-09 active