Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4WCC callsign genealogy
Currently held by CROOK, WILLIAM C
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 KJ4WCC's current licensee, walking backwards.
- CROOK mr, WILLIAM CTNgranted 2009-05-18cancelled 2009-09-22
Successor callsigns
Callsigns held now by people who previously held KJ4WCC.
No current licensee on record previously held this callsign.