Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0BIZ callsign genealogy
Currently held by HEGEMAN, JOHN 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 W0BIZ's current licensee, walking backwards.
- HEGEMAN, JOHN HIAgranted 2004-03-30cancelled 2011-12-10
Successor callsigns
Callsigns held now by people who previously held W0BIZ.
No current licensee on record previously held this callsign.