Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0ZA callsign genealogy
Currently held by HARRELL, WILLIAM R
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 N0ZA's current licensee, walking backwards.
- HEIMBUCH, KURT MMNgranted 2014-12-10cancelled 2020-04-07
Successor callsigns
Callsigns held now by people who previously held N0ZA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0ZA, oldest first.
- HARRELL, WILLIAM R CO2008-02-20 → cancelled 2020-03-19
- HEIMBUCH, KURT M MN2020-04-07 active