Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9O callsign genealogy
Currently held by MC GLOIN, JAMES L
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 KB9O's current licensee, walking backwards.
- Bochniak, Kelly EILgranted 2023-05-17cancelled 2023-12-02
Successor callsigns
Callsigns held now by people who previously held KB9O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9O, oldest first.
- MC GLOIN, JAMES L IL2011-08-15 → cancelled 2023-11-14
- Bochniak, Kelly E IL2023-12-02 active