Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4GU callsign genealogy
Currently held by MAYBERRY JR, JAMES A
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 W4GU's current licensee, walking backwards.
- SLEDGE SR, GEORGE MNCgranted 1999-04-26cancelled 2000-05-02
Successor callsigns
Callsigns held now by people who previously held W4GU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4GU, oldest first.
- MAYBERRY JR, JAMES A FL1988-04-12 → cancelled 2000-04-13
- SLEDGE SR, GEORGE M NC2020-02-06 active