Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC4ZKW callsign genealogy
Currently held by ENNIS, PATRICK 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 KC4ZKW's current licensee, walking backwards.
- Snyder Jr, John PSCgranted 2014-06-26cancelled 2019-03-12
Successor callsigns
Callsigns held now by people who previously held KC4ZKW.
- Snyder Jr, John PSCgranted 2021-08-03
All historical holders
Every license row we've seen with the callsign KC4ZKW, oldest first.
- ENNIS, PATRICK J FL1992-10-06 → cancelled 2004-10-07
- Snyder Jr, John P SC2019-03-12 → cancelled 2021-08-03