Confidence: Medium · Source: FCC ULS · As of 2026-09-10
KB4VPN callsign genealogy
Currently held by BOOKHAMMER JR, BERNARD 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 KB4VPN's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB4VPN.
- Bookhammer Jr, Bernard JVAgranted 2001-11-27cancelled 2002-03-20