Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0UBR callsign genealogy
Currently held by BARNES, FRANK 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 K0UBR's current licensee, walking backwards.
- Barnes, Oral LMOgranted 2009-01-13cancelled 2010-05-11
Successor callsigns
Callsigns held now by people who previously held K0UBR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0UBR, oldest first.
- BARNES, FRANK H MO2008-05-27 → cancelled 2009-06-01
- Barnes, Oral L MO2020-02-21 active