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640 Area Code

Area code 640 serves Trenton, Atlantic City, Princeton, Pleasantville, Ocean Acres and nearby communities in New Jersey. It has been in service since September 17, 2018, when it was split from 609.

StateNew Jersey
Time zoneEastern
Local time now…
Prefixes in use133
Overlay with609
Projected to run out2046
TrentonAtlantic CityPrincetonPleasantvilleOcean AcresPrinceton MeadowsHammontonMercervilleHamilton SquareOcean CityMcKee CitySomers PointBurlingtonWhite HorseVillasBrowns MillsVentnor CitySmithvilleAbseconNorthfieldTwin RiversPomonaFort DixMystic IslandLinwoodYardvilleMays LandingHightstownCape May Court HouseBargaintownMargate CityBeach Haven WestWildwoodFlorenceTrentonAtlantic CityPrincetonOcean AcresHammontonOcean City
Cities and towns served by area code 640

Who issues 640 numbers

Mobile 44%VoIP and cable 33%Landline 23%

Share of the 133 prefixes (the three digits after 640) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
AT&T Mobility33
Onvoy (Sinch)32
T-Mobile16
Verizon Wireless9
Bandwidth7
Fractel7
Ton80 Communications4
Boost Subscriberco L.L.C.4

Cities and towns in area code 640

CityPopulationOther area codes
Trenton91,506609
Atlantic City38,787609
Princeton31,469609
Pleasantville20,853609
Ocean Acres18,689609
Princeton Meadows15,382609
Hammonton15,060609
Mercerville13,693609
Hamilton Square11,643609
Ocean City11,101609
McKee City10,843609
Somers Point10,590609
Burlington10,243609
White Horse10,040609
Villas9,897609
Browns Mills9,561609
Ventnor City9,345609
Smithville9,260609
Absecon9,209609
Northfield8,496609
Twin Rivers8,315609
Pomona8,141609
Fort Dix8,034609
Mystic Island7,616609
Linwood7,051609
Yardville6,266609
Mays Landing6,178609
Hightstown6,007609
Cape May Court House5,375609
Bargaintown5,231609
Margate City5,194609
Beach Haven West5,164609
Wildwood5,068609
Florence5,027609

Got a call from 640?

A 640 number was originally issued in New Jersey, but that does not prove the caller is there. 33% of 640 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 133 prefixes in area code 640

Format: (640) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 640

Where is area code 640?
Area code 640 is in New Jersey. It covers Trenton, Atlantic City, Princeton, Pleasantville, Ocean Acres, Princeton Meadows and 28 more cities and towns.
What time zone is area code 640?
Area code 640 is in the Eastern time zone.
Is 640 a toll-free number?
No. 640 is a geographic area code in New Jersey. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Why does 640 share its area with 609?
609 and 640 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
Will area code 640 run out of numbers?
NANPA's latest forecast projects the 609/640 overlay to exhaust in the third quarter of 2046. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in New Jersey