363 area code is the telephone area code of the North American Numbering Plan (NANP) for Nassau County in western Long Island, New York. This area code has been serving since January 20, 2023.
| Area Code | 363 |
|---|---|
| Major City | Hempstead |
| Service Date | 01/20/2023 |
| Time Zone | Eastern |
| Overlay Complex | 363/516 |
| Location | New York (NY) |
| Country | United States |
Some of the cities served by the 363 area code include Hempstead, Levittown, Freeport, Hicksville, East Meadow, Valley Stream, Long Beach, Elmont, Oceanside and more.
| Area code | City/Town | County |
|---|---|---|
| 363 | Albertson | Nassau |
| 363 | Atlantic Beach | Nassau |
| 363 | Baldwin | Nassau |
| 363 | Bayville | Nassau |
| 363 | Bellmore | Nassau |
| 363 | Bethpage | Nassau |
| 363 | Carle Place | Nassau |
| 363 | Cedarhurst | Nassau |
| 363 | East Meadow | Nassau |
| 363 | East Norwich | Nassau |
| 363 | East Rockaway | Nassau |
| 363 | Elmont | Nassau |
| 363 | Farmingdale | Nassau |
| 363 | Floral Park | Nassau |
| 363 | Franklin Square | Nassau |
| 363 | Freeport | Nassau |
| 363 | Garden City | Nassau |
| 363 | Glen Cove | Nassau |
| 363 | Glen Head | Nassau |
| 363 | Glenwood Landing | Nassau |
| 363 | Great Neck | Nassau |
| 363 | Greenvale | Nassau |
| 363 | Hempstead | Nassau |
| 363 | Hewlett | Nassau |
| 363 | Hicksville | Nassau |
| 363 | Inwood | Nassau |
| 363 | Island Park | Nassau |
| 363 | Jericho | Nassau |
| 363 | Lawrence | Nassau |
| 363 | Levittown | Nassau |
| 363 | Locust Valley | Nassau |
| 363 | Long Beach | Nassau |
| 363 | Lynbrook | Nassau |
| 363 | Malverne | Nassau |
| 363 | Manhasset | Nassau |
| 363 | Massapequa | Nassau |
| 363 | Massapequa Park | Nassau |
| 363 | Merrick | Nassau |
| 363 | Mill Neck | Nassau |
| 363 | Mineola | Nassau |
| 363 | New Hyde Park | Nassau |
| 363 | Oceanside | Nassau |
| 363 | Old Bethpage | Nassau |
| 363 | Old Westbury | Nassau |
| 363 | Oyster Bay | Nassau |
| 363 | Plainview | Nassau |
| 363 | Point Lookout | Nassau |
| 363 | Port Washington | Nassau |
| 363 | Rockville Centre | Nassau |
| 363 | Roosevelt | Nassau |
| 363 | Roslyn | Nassau |
| 363 | Roslyn Heights | Nassau |
| 363 | Sea Cliff | Nassau |
| 363 | Seaford | Nassau |
| 363 | Syosset | Nassau |
| 363 | Uniondale | Nassau |
| 363 | Valley Stream | Nassau |
| 363 | Wantagh | Nassau |
| 363 | West Hempstead | Nassau |
| 363 | Westbury | Nassau |
| 363 | Williston Park | Nassau |
| 363 | Woodbury | Nassau |
| 363 | Woodmere | Nassau |