Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DYA callsign genealogy
Currently held by Armstrong, Douglas Y
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 K1DYA's current licensee, walking backwards.
- Armstrong, Douglas YMAgranted 2012-04-04cancelled 2012-04-24
Successor callsigns
Callsigns held now by people who previously held K1DYA.
- CUSHMAN, BRUCE FRIgranted 2019-09-11
All historical holders
Every license row we've seen with the callsign K1DYA, oldest first.
- CUSHMAN, BRUCE F RI2006-06-16 → cancelled 2009-11-10
- Armstrong, Douglas Y MA2022-04-13 active