Confidence: Medium · Source: FCC ULS · As of 2026-09-15
W1DBJ callsign genealogy
Currently held by JACOBS, DENNIS B
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 W1DBJ's current licensee, walking backwards.
- JACOBS, DENNIS BTXgranted 2023-02-22cancelled 2024-01-03
Successor callsigns
Callsigns held now by people who previously held W1DBJ.
No current licensee on record previously held this callsign.