Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9JDB callsign genealogy
Currently held by Black, James 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 W9JDB's current licensee, walking backwards.
- BENNETT, JONATHAN DINgranted 2019-05-07cancelled 2021-07-30
Successor callsigns
Callsigns held now by people who previously held W9JDB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9JDB, oldest first.
- Black, James D IN2007-10-05 → cancelled 2019-10-08
- BENNETT, JONATHAN D IN2021-07-30 active