Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4JDB callsign genealogy
Currently held by Burcham, Jon D
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 KB4JDB's current licensee, walking backwards.
- Burcham, Jon DALgranted 2025-09-13cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held KB4JDB.
No current licensee on record previously held this callsign.