Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4COG callsign genealogy
Currently held by Clarke, Scott J
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 W4COG's current licensee, walking backwards.
- Chapman Jr, Larry BALgranted 2012-04-04cancelled 2017-10-11
Successor callsigns
Callsigns held now by people who previously held W4COG.
- Clarke, Scott JOKgranted 2024-12-20
All historical holders
Every license row we've seen with the callsign W4COG, oldest first.
- BECK SR, JOHN M FL1998-02-27 → cancelled 2007-06-20
- Clarke, Scott J OK2008-04-01 → cancelled 2015-02-28
- Chapman Jr, Larry B AL2017-10-11 active