Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ILK callsign genealogy
Currently held by Croswell, James
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 W4ILK's current licensee, walking backwards.
- Croswell, James RCTgranted 2017-09-06cancelled 2023-10-20
Successor callsigns
Callsigns held now by people who previously held W4ILK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ILK, oldest first.
- CROSWELL, RICHARD O FL1992-06-09 → cancelled 2004-06-11
- Croswell, James CT2023-10-20 active