Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD7GTI callsign genealogy
Currently held by Ferguson, Douglas M
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 KD7GTI's current licensee, walking backwards.
- IRWIN, GORDON TORgranted 2011-10-12cancelled 2015-10-02
Successor callsigns
Callsigns held now by people who previously held KD7GTI.
- Ferguson, Douglas MWAgranted 2018-08-18
All historical holders
Every license row we've seen with the callsign KD7GTI, oldest first.
- Ferguson, Douglas M WA1999-10-19 → cancelled 2008-11-14
- IRWIN, GORDON T OR2025-08-12 active