| Time (Eastern US) | Author | Comment (most recent last) | Actions |
| 1980-11-24 00:00:00 | FCC App# 22542 | License Renewed | Reply to |
| 1986-04-03 00:00:00 | | Call Sign changed from KKOS to KKOS | Reply to |
| 1993-12-28 00:00:00 | FCC App# 151260 | License Renewed | Reply to |
| 1997-02-13 00:00:00 | FCC App# 240807 | FCC approved station to begin licensed operation | Reply to |
| 2009-07-31 08:30:59 | 3tooz | Quality rating set to 7 | Reply to |
| 2010-02-02 10:52:44 | WesternMA | Successful Volunteer Test (Windows) - 65 Seconds | Reply to |
