Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4IGW callsign genealogy
Currently held by WILBURN, ISAAC G
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 W4IGW's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4IGW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4IGW, oldest first.
- HOLMES, WILLIAM E TN1997-02-26 → cancelled 2005-07-30
- WILBURN, ISAAC G TX2018-07-20 active