Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5YDT callsign genealogy
Currently held by HAPPEL, DONALD W
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 K5YDT's current licensee, walking backwards.
- HAPPEL, DONALD WTXgranted 2018-09-19cancelled 2018-10-12
Successor callsigns
Callsigns held now by people who previously held K5YDT.
No current licensee on record previously held this callsign.