Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3RWX callsign genealogy
Currently held by GRIFFITHS, JOHN 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 N3RWX's current licensee, walking backwards.
- ESTOCK, RYAN DPAgranted 2018-03-22cancelled 2019-06-21
Successor callsigns
Callsigns held now by people who previously held N3RWX.
- ESTOCK, RYAN DPAgranted 2022-04-08
All historical holders
Every license row we've seen with the callsign N3RWX, oldest first.
- GRIFFITHS, JOHN R MD2004-01-27 → cancelled 2016-04-20
- ESTOCK, RYAN D PA2019-06-21 → cancelled 2022-04-08