Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0JWB callsign genealogy
Currently held by Bumgarner, Jason M
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 KB0JWB's current licensee, walking backwards.
- Bumgarner, Jason MIAgranted 2015-11-18cancelled 2015-12-08
Successor callsigns
Callsigns held now by people who previously held KB0JWB.
- MORTENSEN, RONALD ANEgranted 2012-01-19cancelled 2024-03-12