Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4SMM callsign genealogy
Currently held by FIELDS, CHESTER L
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 N4SMM's current licensee, walking backwards.
- Bush, Donald GKYgranted 2006-12-08cancelled 2008-07-25
Successor callsigns
Callsigns held now by people who previously held N4SMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4SMM, oldest first.
- FIELDS, CHESTER L GA1988-04-05 → cancelled 2000-04-06
- Bush, Donald G KY2018-08-02 active