Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4ZRS callsign genealogy
Currently held by CHAPMAN SR, RONALD E
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 N4ZRS's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4ZRS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ZRS, oldest first.
- CHAPMAN SR, RONALD E FL1992-06-02 → cancelled 2004-06-03
- Short, Zach R UT2026-07-28 active