Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB0UIA callsign genealogy
Currently held by SIDEBOTTOM, ROBERT J
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 KB0UIA's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB0UIA.
- Sidebottom, Robert JAZgranted 2009-12-25cancelled 2022-03-08