Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK6CB callsign genealogy
Currently held by Bye, Matthew 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 KK6CB's current licensee, walking backwards.
- Carlson, William JCAgranted 2013-05-21cancelled 2013-10-17
Successor callsigns
Callsigns held now by people who previously held KK6CB.
- Bye, Matthew ACAgranted 2019-04-20
All historical holders
Every license row we've seen with the callsign KK6CB, oldest first.
- Bye, Matthew A CA1999-06-08 → cancelled 2009-05-23
- Carlson, William J CA2024-01-20 active