Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4AZY callsign genealogy
Currently held by KRIESE, DAVID 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 KR4AZY's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KR4AZY.
No current licensee on record previously held this callsign.