Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9OIM callsign genealogy
Currently held by ATKINSON, ROBERT K
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 K9OIM's current licensee, walking backwards.
- ATKINSON, ROBERT KKYgranted 1998-05-26cancelled 2001-10-27
Successor callsigns
Callsigns held now by people who previously held K9OIM.
- VAN MATRE, WILLIAM AINgranted 1999-10-05cancelled 2011-10-06
All historical holders
Every license row we've seen with the callsign K9OIM, oldest first.
- VAN MATRE, WILLIAM A IN1997-02-20 → cancelled 1999-10-05
- ATKINSON, ROBERT K KY2021-10-13 active