Instantly find the phone number with the area code 631

Area code 631 is used in the state of New York in eastern Long Island exclusively for Suffolk County.

Suffolk used to share the area code 516 with neighboring Nassau County until November 1, 1999, when it was decided the area code would be split and Suffolk would end up with a new area code: 631.

Upon nationwide adoption of area codes in October 1947, Suffolk, along with Nassau, were given the 914 area code along with counties in the Lower Hudson Valley until it split very soon after in 1951, giving Long Island the 516 area code exclusively.

Lists of Countries:

KINGS, NY
NASSAU, NY
NEW YORK, NY
QUEENS, NY
SUFFOLK, NY
ULSTER, NY

List of Cities:

AMAGANSETT
MASTIC BEACH
AMITYVILLE
MATTITUCK
AQUEBOGUE
MEDFORD
BABYLON
MELVILLE
BAY SHORE
MERRICK
BAYPORT
MIDDLE ISLAND
BELLPORT
MILLER PLACE
BLUE POINT
MONTAUK
BOHEMIA
MORICHES
BRENTWOOD
MOUNT SINAI
BRIDGEHAMPTON
NESCONSET
BRIGHTWATERS
NEW SUFFOLK
BROOKHAVEN
NEW YORK
BROOKLYN
NORTH BABYLON
CALVERTON
NORTHPORT
CARLE PLACE
OAKDALE
CENTER MORICHES
OCEAN BEACH
CENTEREACH
OLD WESTBURY
CENTERPORT
ORIENT
CENTRAL ISLIP
OYSTER BAY
CLINTONDALE
PATCHOGUE
COLD SPRING HARBOR
PECONIC
COMMACK
PORT JEFFERSON
COPIAGUE
PORT JEFFERSON STATION
CORAM
QUOGUE
CUTCHOGUE
REMSENBURG
DEER PARK
RIDGE
EAST HAMPTON
RIVERHEAD
EAST ISLIP
ROCKY POINT
EAST MARION
RONKONKOMA
EAST MORICHES
ROOSEVELT
EAST NORTHPORT
SAG HARBOR
EAST QUOGUE
SAGAPONACK
EAST SETAUKET
SAINT JAMES
EASTPORT
SAYVILLE
FARMINGDALE
SEAFORD
FARMINGVILLE
SELDEN
FISHERS ISLAND
SHELTER ISLAND
FREEPORT
SHELTER ISLAND HEIGHTS
GARDEN CITY
SHIRLEY
GLEN OAKS
SHOREHAM
GREAT NECK
SMITHTOWN
GREAT RIVER
SOUND BEACH
GREENLAWN
SOUTH JAMESPORT
GREENPORT
SOUTHAMPTON
HAMPTON BAYS
SOUTHOLD
HAUPPAUGE
SPEONK
HEMPSTEAD
STONY BROOK
HOLBROOK
SYOSSET
HOLTSVILLE
UPTON
HUNTINGTON
WADING RIVER
HUNTINGTON STATION
WAINSCOTT
ISLANDIA
WANTAGH
ISLIP
WATER MILL
ISLIP TERRACE
WEST BABYLON
JAMESPORT
WEST HEMPSTEAD
KINGS PARK
WEST ISLIP
LAKE GROVE
WEST SAYVILLE
LAUREL
WESTBURY
LEVITTOWN
WESTHAMPTON
LINDENHURST
WESTHAMPTON BEACH
MANORVILLE
WOODBURY
MASSAPEQUA
WYANDANCH
MASTIC
YAPHANK

Leading institutions, ISPs and Telephone companies:
Some of the leading educational institutions serving the area of code 631 are:

Dowling College (631) 218-0784 - 96 Biltmore Ave, Oakdale,

St Johns University (631) 218-7700 - 500 Montauk Hwy, Oakdale

Suffolk County Offices & Institutions Community College - Sayville Downtown Center Main Reception (631) 851-6970 - 30 Greene Ave, Sayville,

New York Institute of Technology (631) 348-3000 - 300 Carleton Ave, Central Islip, NY

Foreign Medical School (631) 666-0877 - 25 E Main St, Bay Shore, NY

Medical School Services LTD (631) 665-8500 - 1 E Main St, Bay Shore, NY

State University of Ny Educational Opportunity Center (631) 952-1769 - 1090 Suffolk Ave, Brentwood

Suffolk County Offices & Institutions Administrative Offices - Special Services Handicapped (631) 451-4045 - 533 College Rd, Selden,

Suffolk County Offices & Institutions Administrative Offices - Cashier (631) 451-4086 - 533 College Rd, Selden, NY

Suffolk County Offices & Institutions Administrative Offices - Security (631) 451-4242 - 533 College Rd, Selden, NY

Suffolk County Offices & Institutions Administrative Offices - Cafeteria (631) 451-4378 - 533 College Rd, Selden, NY

Suffolk County Offices & Institutions Administrative Offices - Shea Theatre (631) 451-4163 - 533 College Rd, Selden, NY

Suffolk County Offices & Institutions Administrative Offices - Registrar (631) 451-4004 - 533 College Rd, Selden, NY

Major ISPs offering dialup and dedicated services for the people of the 631 areas are:

I Trade Direct.Com (631) 451-6073

Outer Dominion Technologies (631) 654-3323

Ezzi Computers (631) 476-4782

Sale Island Internet (631) 627-3503

Kemp Technologies (631) 345-5292

Systec Computer Assoc Inc (631) 473-5956

Alterity Net LLC (631) 981-5479

Channel 21 Productions Internet (631) 821-92

Some of the main carriers and telephone companies for the 631 areas are:

AT&T Wireless (631) 205-1972 - 666 Middle Country Rd, Middle Island

Radio Shack (631) 289-2581 - 2950 Horseblock Rd, Medford, NY

A T & T (631) 289-2671 - 1040 Waverly Ave, Holtsville, NY

Light House Telecommunications (631) 828-8387 - 405 Broadway, Port Jefferson Station, NY

Tele Verse Communi (631) 627-3510 - 730 Blue Point Rd, Holtsville, NY

A T & T (631) 476-9077 - 5030 Nesconset Hwy, East Setauket, NY

Radio Shack (631) 331-1820 - 1043 Route 112, Port Jefferson Station, NY

Comworx Inc (631) 331-5752 - 6 Sarah Anne Ct, Miller Place, NY

Cheaper Beepers of Centereach Inc (631) 585-9656 - 2297 Middle Country Rd, Centereach,

Ultra TEC Heating and Air Conditioning (631) 476-1425 - 21 Washington Ave, Port Jefferson Station