| Identifier: | ZISDU |
| NAS ID: | ZISDU |
| Name: | ZISDU |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | ALASKA |
| ICAO Region: | PA |
| Latitude: | 70-28-08.350N (70.469000) |
| Longitude: | 157-25-20.990W (-157.422500) |
| Magnetic Variance: | 10.5 E as of 9/30/2025 |
| High ARTCC Area: | ZAN |
| Low ARTCC Area: | ZAN |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| CONTROLLER LOW |
| ENROUTE LOW |