Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB4MS callsign genealogy
Currently held by SHERRILL, MICHAEL 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 KB4MS's current licensee, walking backwards.
- SHERRILL, MICHAEL AFLgranted 1999-06-09cancelled 2002-03-07
Successor callsigns
Callsigns held now by people who previously held KB4MS.
No current licensee on record previously held this callsign.