Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NZ4E callsign genealogy
Currently held by HARTON III, MARCUS W
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 NZ4E's current licensee, walking backwards.
- SMYTH, PATRICK SAEgranted 2020-04-20cancelled 2023-09-01
Successor callsigns
Callsigns held now by people who previously held NZ4E.
- HARTON III, MARCUS WMDgranted 2021-08-13
All historical holders
Every license row we've seen with the callsign NZ4E, oldest first.
- HARTON III, MARCUS W MD2016-12-06 → cancelled 2021-08-13
- SMYTH, PATRICK S AP2023-09-01 active