Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3OXZ callsign genealogy
Currently held by RUCKMAN JR, WILLIAM B
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 KB3OXZ's current licensee, walking backwards.
- RUCKMAN JR, WILLIAM BMDgranted 2007-04-16cancelled 2007-04-16
Successor callsigns
Callsigns held now by people who previously held KB3OXZ.
No current licensee on record previously held this callsign.