Confidence: Medium · Source: FCC ULS · As of 2026-09-12
ND3RG callsign genealogy
Currently held by Greenwood, John P
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 ND3RG's current licensee, walking backwards.
- Greenwood, John PPAgranted 2021-04-02cancelled 2022-06-24
Successor callsigns
Callsigns held now by people who previously held ND3RG.
- Greenwood, John PPAgranted 2022-07-15