Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD7YKK callsign genealogy
Currently held by KRIZ, FRANK 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 KD7YKK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD7YKK.
No current licensee on record previously held this callsign.