Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7DBG callsign genealogy
Currently held by Blackmore, Matthew J
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 W7DBG's current licensee, walking backwards.
- Blackmore, Matthew JWAgranted 2013-03-12cancelled 2013-04-02
Successor callsigns
Callsigns held now by people who previously held W7DBG.
No current licensee on record previously held this callsign.