Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4KMU callsign genealogy
Currently held by Barefoot, William G
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 W4KMU's current licensee, walking backwards.
- Barefoot, William GNCgranted 2000-11-22cancelled 2001-08-15
Successor callsigns
Callsigns held now by people who previously held W4KMU.
No current licensee on record previously held this callsign.