Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4JFS callsign genealogy
Currently held by Prigge, Donald R
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 W4JFS's current licensee, walking backwards.
- Sherwood, JohnFLgranted 2019-07-09cancelled 2019-07-30
Successor callsigns
Callsigns held now by people who previously held W4JFS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JFS, oldest first.
- Prigge, Donald R KY2006-01-11 → cancelled 2018-02-24
- Sherwood, John FL2019-07-30 active