Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9CO callsign genealogy
Currently held by HOKANSON, ARNOLD W
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 KC9CO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KC9CO.
- Sullivan, Michael GTNgranted 2020-08-15
All historical holders
Every license row we've seen with the callsign KC9CO, oldest first.
- HOKANSON, ARNOLD W IL1996-02-16 → cancelled 2008-02-19
- Sullivan, Michael G TN2014-04-25 → cancelled 2020-08-15