Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4BAB callsign genealogy
Currently held by DAY, BENNIE R
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 KC4BAB's current licensee, walking backwards.
- Sweigart, Ruth BFLgranted 2014-11-25cancelled 2014-12-23
Successor callsigns
Callsigns held now by people who previously held KC4BAB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4BAB, oldest first.
- DAY, BENNIE R AL1997-05-23 → cancelled 2009-05-27
- Sweigart, Ruth B FL2024-12-13 active