Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MPR callsign genealogy
Currently held by Ruffner, Matt
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 W4MPR's current licensee, walking backwards.
- Ruffner, MattKYgranted 2024-02-13cancelled 2024-03-02
Successor callsigns
Callsigns held now by people who previously held W4MPR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MPR, oldest first.
- Ramsey, James F SC2005-06-09 → cancelled 2017-08-22
- Ruffner, Matt KY2024-03-02 active