Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4UMV callsign genealogy
Currently held by Voorhees, Christopher 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 K4UMV's current licensee, walking backwards.
- Voorhees, Christopher MMNgranted 2018-10-11cancelled 2018-10-30
Successor callsigns
Callsigns held now by people who previously held K4UMV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4UMV, oldest first.
- BURRILL, GEORGE P TX2004-06-16 → cancelled 2016-06-17
- Voorhees, Christopher M MN2018-10-30 active