Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9BXB callsign genealogy
Currently held by SORENSEN, ROBERT H
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 K9BXB's current licensee, walking backwards.
- Cantrell, Danny JINgranted 2016-07-19cancelled 2016-08-09
Successor callsigns
Callsigns held now by people who previously held K9BXB.
- Cantrell, Danny JINgranted 2018-07-10
All historical holders
Every license row we've seen with the callsign K9BXB, oldest first.
- SORENSEN, ROBERT H IL1997-01-28 → cancelled 2009-01-29
- Cantrell, Danny J IN2016-08-09 → cancelled 2018-07-10