Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4GWM callsign genealogy
Currently held by Greenwood County Emergency Communications
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 W4GWM's current licensee, walking backwards.
- KJ4ZLMcancelledGreenwood County Emergency CommunicationsSCgranted 2010-12-07cancelled 2012-08-11
Successor callsigns
Callsigns held now by people who previously held W4GWM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4GWM, oldest first.
- Merchant, George Wm SC1998-10-05 → cancelled 2010-10-06
- Greenwood County Emergency Communications SC2022-08-06 active