| Added Frequency 131.8 (ARINC San Francisco Radio ) | LAflyer | 2022-11-11 22:24:13 |
| Added Subcategory: Airline Operations | LAflyer | 2022-11-11 22:23:46 |
| Agency: Williston Basin International Airport (XWA) changed from Sloulin Field International Airport (ISN) (Aircraft / Airport) | ericcarlson | 2020-07-13 13:40:59 |
| Changed category from (Sloulin Field International Aiport 99) to (Williston Basin International Airport (XWA) 99) | ericcarlson | 2020-07-13 13:40:38 |
| Added Frequency 305.32 (Salt Lake ARTCC) | PJH | 2018-06-24 04:30:57 |
| Frequencies Updated (Updated: 1, Deleted 0) for Sloulin Field International Aiport | PJH | 2018-06-24 04:30:31 |
| Frequencies Updated (Updated: 1, Deleted 0) for Sloulin Field International Aiport | PJH | 2018-06-24 04:29:31 |
| Changed Subcategory Details For: Air Traffic Control | PJH | 2018-06-24 04:26:45 |
| Changed category from (Air Traffic Control 99) to (Sloulin Field International Aiport 99) | PJH | 2018-06-24 04:26:03 |
| Frequencies Updated (Updated: 0, Deleted 1) for Air Traffic Control | PJH | 2018-06-24 04:25:37 |
| Frequencies Updated (Updated: 4, Deleted 0) for Air Traffic Control | PJH | 2018-06-24 04:25:27 |
| Subcategory: (Williston Airport) migrated to Category (Air Traffic Control) in Agency: (Sloulin Field International Airport (ISN | PJH | 2018-06-24 04:17:28 |
| Added category (Air Traffic Control 99) | PJH | 2018-06-24 04:17:00 |
