Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4BB callsign genealogy
Currently held by BUTLER, ROBERT 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 KB4BB's current licensee, walking backwards.
- Schneid, Joseph MKYgranted 2013-01-18cancelled 2013-09-06
Successor callsigns
Callsigns held now by people who previously held KB4BB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4BB, oldest first.
- BUTLER, ROBERT M NC2000-07-14 → cancelled 2012-07-17
- Schneid, Joseph M KY2023-06-22 active