| Time (Eastern US) | Author | Comment (most recent last) | Actions |
| 0000-00-00 00:00:00 | FCC App# 313545 | FCC approved station to begin licensed operation | Fix Delete Reply to |
| 1957-08-29 00:00:00 | FCC App# 313545 | FCC approved station to begin licensed operation | Fix Delete Reply to |
| 1980-03-25 00:00:00 | FCC App# 15707 | License Renewed | Fix Delete Reply to |
| 1983-03-15 00:00:00 | FCC App# 50094 | License Renewed | Fix Delete Reply to |
| 1986-10-03 00:00:00 | | Call Sign changed from KKOA to KRRZ | Fix Delete Reply to |
| 1991-03-06 00:00:00 | FCC App# 136084 | License Renewed | Fix Delete Reply to |
| 1997-05-06 00:00:00 | FCC App# 236763 | License Renewed | Fix Delete Reply to |
| 1997-05-19 00:00:00 | FCC App# 237833 | FCC approved transfer of license from CD BROADCASTING CORPORATION OF MINOT to KRRZ/KZPR/KIZZ L.L.C. | Fix Delete Reply to |
| 2000-08-18 00:00:00 | FCC App# 506372 | FCC approved transfer of license from KRRZ/KZPR/KIZZ L.L.C. to CLEAR CHANNEL BROADCASTING LICENSES, INC. | Fix Delete Reply to |
| 2005-03-30 00:00:00 | FCC App# 1028148 | License Renewed | Fix Delete Reply to |
| 2007-06-06 00:00:00 | FCC App# 1187535 | FCC request to transfer license from GOODRADIO.TV LICENSE, LLC to LEIBOWITZ STATION TRUST, LLC, AS TRUSTEE superceded | Fix Delete Reply to |
| 2007-09-10 00:00:00 | FCC App# 1194968 | FCC request to transfer license from CC LICENSES, LLC to FREQUENCY LICENSE, LLC superceded | Fix Delete Reply to |
| 2007-11-05 00:00:00 | FCC App# 1216349 | FCC request to transfer license from CC LICENSES, LLC to ALOHA STATION TRUST, LLC superceded | Fix Delete Reply to |
| 2011-07-15 06:25:04 | editor | verifiedtime changed to 7/15/2011 6:25:04 AM | Fix Delete Reply to |
| 2013-06-27 15:40:25 | editor | verifiedtime changed to 6/27/2013 3:40:25 PM | Fix Delete Reply to |
| 2014-08-23 06:18:32 | editor | Station Format updated from Oldies to Classic Rock / Hits | Fix Delete Reply to |
| 2015-07-29 21:42:21 | editor | Changed streaming URL to http://www.iheart.com/live/stevie-nicks-guest-dj-6719/ | Fix Delete Reply to |
| 2015-07-29 21:44:47 | editor | Station Web Site Reviewed | Fix Delete Reply to |
| 2015-12-19 02:48:22 | editor | Station Web Site Reviewed | Fix Delete Reply to |
| 2016-05-20 13:43:34 | editor | Station Web Site Reviewed | Fix Delete Reply to |
| 2018-12-07 00:00:00 | FCC App# 1794445 | FCC approved transfer of license from ALOHA STATION TRUST, LLC to ALOHA STATION TRUST II LLC | Fix Delete Reply to |
| 2019-04-13 11:05:43 | editor | Station Homepage Title changed from KRRZ-AM - Minot's Classic Hits to KRRZ-AM - Minot's Classic Hits | Fix Delete Reply to |
| 2019-05-20 00:00:00 | FCC App# 1804389 | FCC received request to transfer license from ALOHA STATION TRUST II LLC to CC LICENSES, LLC | Fix Delete Reply to |
| 2021-04-12 16:14:05 | editor | Station Homepage Title changed from KRRZ-AM - Minot's Classic Hits to 1390 KRRZ - Minot's Classic Hits | Fix Delete Reply to |
| 2021-04-12 18:25:10 | editor | Updated Station Description to Minot's Classic Hits | Fix Delete Reply to |
| 2025-08-02 17:43:55 | editor | Updated Schedule URL to https://classichits1390.iheart.com/ | Fix Delete Reply to |
| 2025-08-02 20:00:58 | editor | Updated Schedule URL to https://classichits1390.iheart.com/schedule/ | Fix Delete Reply to |
