Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0JB callsign genealogy
Currently held by BRADLEY, JAMES E
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 KC0JB's current licensee, walking backwards.
- BRADLEY, JAMES EIAgranted 2003-01-28cancelled 2011-07-06
Successor callsigns
Callsigns held now by people who previously held KC0JB.
- BLACK, DAVID GTXgranted 2022-08-02
All historical holders
Every license row we've seen with the callsign KC0JB, oldest first.
- BLACK, DAVID G TX2001-08-15 → cancelled 2002-07-16
- BRADLEY, JAMES E IA2023-04-11 active