Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9CVO callsign genealogy
Currently held by Crowell II, William 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 W9CVO's current licensee, walking backwards.
- Crowell II, William BWIgranted 2020-01-24cancelled 2020-02-14
Successor callsigns
Callsigns held now by people who previously held W9CVO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9CVO, oldest first.
- SIMON, EARL O IN2006-12-02 → cancelled 2018-12-04
- Crowell II, William B WI2020-02-14 active