Aids to Navigation Long Island Sound's AOR covers 240 miles of coastline on Long Island Sound along with all tributaries including the Thames River in New London; the Connecticut River in Old Saybrook; New Haven Harbor; Housatonic River in Stratford; Bridgeport Harbor; Norwalk Harbor; Greenwich Harbor; Huntington Harbor, NY; Port Jefferson Harbor, NY. ANT LIS's AOR encompasses the AORs of 3 separate SAR Stations within itself. ANT LIS also covers secondary responsibility for aids that are assigned to 5 different cutters.
The following table shows the number of Aids to Navigation that ANT LIS holds responsibility for.
| Type of Aids to Navigation | Number assigned |
|---|---|
| Primary Aids | 564 |
| Buoys | 513 |
| Lighthouses | 20 |
| Lighted Structures (includes 3 sets of Range Lights) | 31 |
| Secondary Aids | 290 |
| Federally Permitted Private Aids | 697 |
| Total Aids assigned to ANT Long Island Sound | 1551 |