Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM4J callsign genealogy
Currently held by WILLIAMS, KEVIN T
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 WM4J's current licensee, walking backwards.
- WILLIAMS, KEVIN TNCgranted 2002-11-13cancelled 2011-08-19
Successor callsigns
Callsigns held now by people who previously held WM4J.
- JURGIELSKI, WILLIAMFLgranted 2009-07-31cancelled 2019-05-17
All historical holders
Every license row we've seen with the callsign WM4J, oldest first.
- JURGIELSKI, WILLIAM FL2006-08-16 → cancelled 2009-07-31
- WILLIAMS, KEVIN T NC2021-05-25 active