Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WA1YDK callsign genealogy
Currently held by Dyer, Donovan J
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 WA1YDK's current licensee, walking backwards.
- Dyer, Donovan JCTgranted 2014-04-08cancelled 2014-04-29
Successor callsigns
Callsigns held now by people who previously held WA1YDK.
- Dyer, Donovan JCTgranted 2025-08-15
All historical holders
Every license row we've seen with the callsign WA1YDK, oldest first.
- DYER, DONOVAN J CT1988-01-12 → cancelled 2000-01-13
- Dyer, Donovan J CT2024-03-02 → cancelled 2025-08-15