Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4S callsign genealogy
Currently held by Parker, John 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 KB4S's current licensee, walking backwards.
- Parker, John MVAgranted 2014-06-23cancelled 2018-12-28
Successor callsigns
Callsigns held now by people who previously held KB4S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4S, oldest first.
- BAGLIONI, FRANK A AL2007-12-27 → cancelled 2016-12-09
- Parker, John M VA2018-12-28 active