Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0JSG callsign genealogy
Currently held by Greenwood, Jeffrey S
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 N0JSG's current licensee, walking backwards.
- Greenwood, Jeffrey SMOgranted 2018-11-26cancelled 2021-01-12
Successor callsigns
Callsigns held now by people who previously held N0JSG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0JSG, oldest first.
- WALTON III, WILLIAM S KS2008-06-21 → cancelled 2020-09-02
- Greenwood, Jeffrey S MO2021-01-12 active