Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9TGD callsign genealogy
Currently held by DETTMAN SR, THOMAS G
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 W9TGD's current licensee, walking backwards.
- DETTMAN SR, THOMAS GILgranted 2004-04-29cancelled 2004-07-10
Successor callsigns
Callsigns held now by people who previously held W9TGD.
- DETTMAN SR, THOMAS GILgranted 2021-03-12