Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4YK callsign genealogy
Currently held by Williams, Micah N
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 KZ4YK's current licensee, walking backwards.
- Williams, Micah NALgranted 2020-03-09cancelled 2025-12-11
Successor callsigns
Callsigns held now by people who previously held KZ4YK.
- Williams, Micah NALgranted 2025-12-30