Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4BYL callsign genealogy
Currently held by CLOTFELTER, DAVID W
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 WB4BYL's current licensee, walking backwards.
- CLOTFELTER, David WGAgranted 2005-12-06cancelled 2006-01-10
Successor callsigns
Callsigns held now by people who previously held WB4BYL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4BYL, oldest first.
- WILKINS JR, CLYDE L VA2003-12-23 → cancelled 2004-04-12
- CLOTFELTER, DAVID W GA2025-12-02 active