Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4JIM callsign genealogy
Currently held by SANDERS, JAMES 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 WB4JIM's current licensee, walking backwards.
- Villano Sr, James ACTgranted 2021-05-20cancelled 2023-09-06
Successor callsigns
Callsigns held now by people who previously held WB4JIM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4JIM, oldest first.
- SANDERS, JAMES C FL2006-05-12 → cancelled 2018-06-19
- Villano Sr, James A CT2023-09-06 active