Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4SAB callsign genealogy
Currently held by Brown, Seth 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 KC4SAB's current licensee, walking backwards.
- Brown, Seth ANCgranted 2021-01-11cancelled 2021-01-29
Successor callsigns
Callsigns held now by people who previously held KC4SAB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4SAB, oldest first.
- ABADIN SR, RAMON FL1990-07-17 → cancelled 2002-07-18
- Brown, Seth A NC2021-01-29 active