| Identifier: | FISDU |
| NAS ID: | FISDU |
| Name: | FISDU |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | MISSISSIPPI |
| ICAO Region: | K7 |
| Latitude: | 32-42-36.140N (32.710000) |
| Longitude: | 089-08-12.160W (-89.136700) |
| Magnetic Variance: | 2.3 W as of 9/30/2025 |
| High ARTCC Area: | ZME |
| Low ARTCC Area: | ZME |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| IAP |