Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4FZS callsign genealogy
Currently held by The National Amateur Radio Alliance
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 KR4FZS'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 KR4FZS.
- NA4ROactiveThe National Amateur Radio AllianceTNgranted 2025-09-03