Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9YOY callsign genealogy
Currently held by CASWELL, CHARLES R
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 W9YOY's current licensee, walking backwards.
- Caswell, Charles RILgranted 2005-04-14cancelled 2008-02-12
Successor callsigns
Callsigns held now by people who previously held W9YOY.
No current licensee on record previously held this callsign.