Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6JDB callsign genealogy
Currently held by Blatter, John 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 K6JDB's current licensee, walking backwards.
- Blatter, John DCAgranted 2008-02-22cancelled 2008-03-18
Successor callsigns
Callsigns held now by people who previously held K6JDB.
No current licensee on record previously held this callsign.