Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4SGM callsign genealogy
Currently held by NELSON, CHARLES
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 W4SGM's current licensee, walking backwards.
- McElroy, EdwardNMgranted 2021-04-14cancelled 2021-05-11
Successor callsigns
Callsigns held now by people who previously held W4SGM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4SGM, oldest first.
- NELSON, CHARLES AL2006-03-03 → cancelled 2018-04-17
- McElroy, Edward TN2021-05-11 active