Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC5JB callsign genealogy
Currently held by Brinkman, Jeff
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 KC5JB's current licensee, walking backwards.
- Brinkman, Jeffrey DTXgranted 2015-12-10cancelled 2016-07-06
Successor callsigns
Callsigns held now by people who previously held KC5JB.
- DAVIS, FRANK BNCgranted 2011-12-20cancelled 2023-12-21
All historical holders
Every license row we've seen with the callsign KC5JB, oldest first.
- DAVIS, FRANK B NC2009-03-04 → cancelled 2011-12-20
- Brinkman, Jeff TX2016-07-06 active