Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6CBO callsign genealogy
Currently held by Olson, Carl B
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 W6CBO's current licensee, walking backwards.
- Olson, Carl BCAgranted 2007-09-05cancelled 2008-02-05
Successor callsigns
Callsigns held now by people who previously held W6CBO.
No current licensee on record previously held this callsign.