Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9CCW callsign genealogy
Currently held by CORO, CONSTANTIN
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 W9CCW's current licensee, walking backwards.
- Sullivan, MikeCAgranted 2014-03-07cancelled 2014-03-28
Successor callsigns
Callsigns held now by people who previously held W9CCW.
- Coro, ConstantinILgranted 2006-10-14cancelled 2007-09-14
All historical holders
Every license row we've seen with the callsign W9CCW, oldest first.
- CORO, CONSTANTIN IL2003-12-30 → cancelled 2006-10-14
- SULLIVAN, MIKE AZ2024-03-02 active