Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8BDT callsign genealogy
Currently held by Ferguson, William 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 W8BDT's current licensee, walking backwards.
- Ferguson, William DOHgranted 2022-02-22cancelled 2022-03-15
Successor callsigns
Callsigns held now by people who previously held W8BDT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8BDT, oldest first.
- HACKMAN, THOMAS A OH1996-08-05 → cancelled 2008-08-06
- Ferguson, William D OH2022-03-15 active