Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4ZSU callsign genealogy
Currently held by Uribe, Zack
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 N4ZSU's current licensee, walking backwards.
- Uribe, ZackHIgranted 2025-12-24cancelled 2026-01-16
Successor callsigns
Callsigns held now by people who previously held N4ZSU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ZSU, oldest first.
- SMITH, RANDY A NC2001-02-21 → cancelled 2012-07-11
- Uribe, Zack HI2026-01-16 active