| AreaCode/Prefix | City |
|---|---|
| 934-222 | Southampton, NY |
| 934-223 | Smithtown, NY |
| 934-333 | Lindenhurst, NY |
| 934-400 | Port Jefferson, NY |
| 934-420 | Farmingdale, NY |
| 934-444 | Amityville, NY |
| 934-451 | Bellport, NY |
| 934-470 | Northport, NY |
| 934-500 | Brentwood, NY |
| 934-666 | Central Islip, NY |
| 934-777 | Brentwood, NY |
| 934-800 | Yaphank, NY |
| 934-852 | Yaphank, NY |
| 934-888 | Bay Shore, NY |