Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0NYW callsign genealogy
Currently held by KASSIK, RYAN 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 KD0NYW's current licensee, walking backwards.
- KASSIK, RYAN WCOgranted 2007-10-31cancelled 2011-03-17
Successor callsigns
Callsigns held now by people who previously held KD0NYW.
- KASSIK, RYAN WCOgranted 2017-08-30