Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4JIM callsign genealogy
Currently held by Prange, James M
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 WA4JIM's current licensee, walking backwards.
- Prange, James MNHgranted 2024-04-25cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held WA4JIM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4JIM, oldest first.
- NOWLIN, CHARLES L FL2012-08-27 → cancelled 2024-12-04
- Prange, James M NH2025-12-09 active