Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4BAZ callsign genealogy
Currently held by Burdick, William S
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 KK4BAZ's current licensee, walking backwards.
- BAZ, CHRISTOPHER SSCgranted 2019-04-17cancelled 2019-07-06
Successor callsigns
Callsigns held now by people who previously held KK4BAZ.
- Burdick, William SSCgranted 2021-04-01
All historical holders
Every license row we've seen with the callsign KK4BAZ, oldest first.
- Burdick, William S SC2011-03-21 → cancelled 2011-06-28
- BAZ, CHRISTOPHER S SC2019-07-06 active