| Time (Eastern US) | Author | Comment (most recent last) | Actions |
| 1980-03-14 00:00:00 | FCC App# 13897 | FCC approved station to begin licensed operation | Reply to |
| 1987-04-17 00:00:00 | FCC App# 62325 | FCC approved station to begin licensed operation | Reply to |
| 1987-04-20 00:00:00 | FCC App# 73895 | FCC approved station to begin licensed operation | Reply to |
| 1997-03-26 00:00:00 | FCC App# 236370 | License Renewed | Reply to |
| 2006-03-09 00:00:00 | FCC App# 1112787 | FCC approved station to begin licensed operation | Reply to |
| 2014-12-01 18:41:35 | idziak4ever1234 | Station Web Site Reviewed | Reply to |
| 2016-12-16 23:31:28 | charlottenc | Station Homepage Title changed from Homepage 2 - KBLL-FM to Web Page Under Construction | Reply to |
| 2016-12-16 23:34:53 | charlottenc | Updated Station Description to The Bull | Reply to |
| 2017-04-07 00:00:00 | FCC App# 1758102 | FCC received request to transfer license from CCR-HELENA IV, LLC to THE MONTANA RADIO COMPANY, LLC | Reply to |
| 2017-06-02 00:00:00 | FCC App# 1754373 | FCC request to transfer license from CCR-HELENA IV, LLC to THE MONTANA RADIO COMPANY, LLC superceded | Reply to |
| 2017-08-04 06:42:25 | | Licensee changed from CCR-HELENA IV, LLC to THE MONTANA RADIO COMPANY, LLC | Reply to |
| 2017-08-04 06:42:25 | | Licensee changed from CCR-HELENA IV, LLC to THE MONTANA RADIO COMPANY, LLC | Reply to |
| 2018-07-12 16:48:30 | editor | Station Homepage Title changed from Security Check Required to 99-5 The Bull - Home | Facebook | Reply to |
| 2019-04-30 16:08:10 | editor | Station URL no longer valid | Reply to |
