Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4BBR callsign genealogy
Currently held by Smith, Boyce 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 K4BBR's current licensee, walking backwards.
- Smith, Boyce RALgranted 2015-12-30cancelled 2016-10-29
Successor callsigns
Callsigns held now by people who previously held K4BBR.
- BOSTOCK, ROGER WMAgranted 2013-10-17cancelled 2020-07-17
All historical holders
Every license row we've seen with the callsign K4BBR, oldest first.
- BOSTOCK, ROGER W FL2009-12-11 → cancelled 2013-10-17
- Smith, Boyce R AZ2026-08-11 active