Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4GMW callsign genealogy
Currently held by COLSON, ELMO
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 N4GMW's current licensee, walking backwards.
- Winslow, George MTNgranted 2005-08-23cancelled 2008-08-01
Successor callsigns
Callsigns held now by people who previously held N4GMW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4GMW, oldest first.
- COLSON, ELMO FL1989-05-09 → cancelled 2001-05-10
- Winslow, George M TN2018-05-10 active