Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4OO callsign genealogy
Currently held by SYKES, EUGENE B
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 W4OO's current licensee, walking backwards.
- BENSON, THOMAS WVAgranted 2017-01-04cancelled 2019-10-18
Successor callsigns
Callsigns held now by people who previously held W4OO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4OO, oldest first.
- SYKES, EUGENE B FL1997-11-04 → cancelled 2006-06-13
- Hampton, Bill G GA2008-07-04 → cancelled 2017-09-28
- BENSON, THOMAS W VA2019-10-18 active