Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4VU callsign genealogy
Currently held by McCormick, Sean S
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 KZ4VU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KZ4VU.
No current licensee on record previously held this callsign.