Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NM3J callsign genealogy
Currently held by HERIGSTAD, GARVIN M
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 NM3J's current licensee, walking backwards.
- MITCHELL, JONATHAN SMDgranted 2018-03-30cancelled 2024-09-21
Successor callsigns
Callsigns held now by people who previously held NM3J.
- ITALIANI, NICHOLASGAgranted 2022-07-23
All historical holders
Every license row we've seen with the callsign NM3J, oldest first.
- HERIGSTAD, GARVIN M PA1997-08-29 → cancelled 1998-11-14
- LARSON, JAMES M IA2009-05-12 → cancelled 2021-05-13
- ITALIANI, NICHOLAS GA2021-07-03 → cancelled 2022-07-23
- MITCHELL, JONATHAN S MD2024-09-21 active