| Identifier: | ICOSI |
| NAS ID: | ICOSI |
| Name: | ICOSI |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | WISCONSIN |
| ICAO Region: | K5 |
| Latitude: | 44-45-19.030N (44.755300) |
| Longitude: | 088-55-05.970W (-88.918300) |
| Magnetic Variance: | 3.5 W as of 9/30/2025 |
| High ARTCC Area: | ZMP |
| Low ARTCC Area: | ZMP |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| IAP |