Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4SGA callsign genealogy
Currently held by Kerner Jr, John C
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 KB4SGA's current licensee, walking backwards.
- Kerner Jr, John CGAgranted 2019-03-20cancelled 2019-04-09
Successor callsigns
Callsigns held now by people who previously held KB4SGA.
No current licensee on record previously held this callsign.