Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KV4MU callsign genealogy
Currently held by GUTHRIE, BOYD A
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 KV4MU's current licensee, walking backwards.
- GUTHRIE, BOYD ANCgranted 2013-03-18cancelled 2013-04-22
Successor callsigns
Callsigns held now by people who previously held KV4MU.
No current licensee on record previously held this callsign.