Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0YKL callsign genealogy
Currently held by Cooney, John F
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 KD0YKL's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD0YKL.
- Cooney, John FAZgranted 2014-05-02cancelled 2026-05-05