NEW YORK · AREA CODE GUIDE
631 and 934 area codes location: Lindenhurst, New York
- Local date and time
- Eastern Time
Map data: UCLA Geoportal (2015) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Download the 631 area code map
631 and 934 area codes at a glance
- State
- New York
- Primary cities
- Lindenhurst, Patchogue, and Babylon
- Time zone
- Eastern Time
- Answering calls
- Rules for answering calls in New York
An area code does not show where a caller is now.
| Area code | Started service | Parent code | New code planned |
|---|---|---|---|
| 631 | 516 | No, as of 22 September 2026 | |
| 934 | 631 | No, as of 22 September 2026 |
History
- : 934 added as an overlay on 631
Counties and cities covered
These are telephone exchange areas, which follow the phone network rather than city limits.
Counties of the communities we could place (the code may reach further): Nassau County and Suffolk County.
- Lindenhurst
- Patchogue
- Babylon
- Amityville
- Farmingdale
- Port Jefferson
- Northport
- Southampton
- Sag Harbor
- Greenport
- Bellport
- Quogue
- East Hampton
- Shoreham
- Amagansett
- Atlantic
- Bay Shore
- Bayport
- Brentwood
- Bridgehampton
- Center Moriches
- Central Islip
- Cold Spring Harbor
- Commack
- Deer Park
28 more communities
- East Fire Island
- Eastport
- Fire Island
- Fishers Island
- Hampton Bays
- Huntington
- Islip
- Jamesport
- Kings Park
- Mattituck
- Midland
- Montauk Point
- Orient
- Peconic
- Riverhead
- Ronkonkoma
- Saint James
- Sayville
- Selden
- Shelter Island
- Smithtown
- Southold
- Stony Brook
- Wading River
- Water Mill
- West Commack
- Westhampton
- Yaphank
Sources: NANPA area code listing, NANPA places by area code, U.S. Census Bureau county geography. Checked .
Business phone numbers in area codes 631 and 934, answered by an AI agent
A local number for Lindenhurst, Patchogue, and Babylon, New York, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.