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Area Code Overview
Area code 640 is a geographic telephone area code in New Jersey that went into service on September 17, 2018. The geographic regions covered by this area code overlay has a population of approximately 1,244,803.
Overlay and Dialing Rules
- Area Code: 640
- State: New Jersey
- Type: General Purpose Code
- In Service Date: September 17, 2018
- Overlay Complex: 609/640
- Local Dialing Plan: This area does require you to dial the area code when calling locally.
Estimated Number of Assigned Phone Numbers in Area Code 640
This area code is ranked 317th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 10th out of 10.
1,116,000
Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 640
Wireline and VoIP
458,000 assigned
41.04%
Other / Unclassified
85,000 assigned
7.62%
Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 640
Estimated assigned wireless phone numbers: 573,000
Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.
AT&T Wireless 377,000 (65.79%)
Verizon Wireless 98,000 (17.10%)
Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 640
Estimated assigned wireline and VoIP phone numbers: 458,000
Peerless Network 17,000 (3.71%)
Comcast Business 12,000 (2.62%)
TERRA NOVA TELECOM INC. 9,000 (1.97%)
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 1,000 (0.22%)
Other / Unclassified Assigned Numbering in Area Code 640
Estimated assigned other or unclassified phone numbers: 85,000
CORETEL NEW JERSEY, INC. - NJ 22,000 (25.88%)
FRACTEL, LLC 21,000 (24.71%)
IP HORIZON LLC 14,000 (16.47%)
HD CARRIER LLC 12,000 (14.12%)
TON80 COMMUNICATIONS, LLC 10,000 (11.76%)
TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 2,000 (2.35%)
BLOCK LINE SYSTEMS, LLC - NJ 1,000 (1.18%)
CALLWORKS CORPORATION 1,000 (1.18%)
WAVENATION, LLC 1,000 (1.18%)
Cities and Towns in Area Code 640
Allentown, New Jersey Atlantic City, New Jersey Avalon, New Jersey Barnegat, New Jersey Beach Haven, New Jersey Bordentown, New Jersey Bridgeton, New Jersey Brigantine, New Jersey Burlington, New Jersey Camden, New Jersey Cape May Court House, New Jersey Collingswood, New Jersey Cranbury, New Jersey Dennisville, New Jersey Egg Harbor, New Jersey Ewing, New Jersey Florence, New Jersey Fort Dix, New Jersey Haddon Heights, New Jersey Haddonfield, New Jersey Hammonton, New Jersey Hightstown, New Jersey Hopewell, New Jersey Lambertville, New Jersey Lawrenceville, New Jersey Mays Landing, New Jersey Medford, New Jersey Mercerville, New Jersey Millville, New Jersey Milmay, New Jersey Moorestown, New Jersey Mount Holly, New Jersey Mullica Hill, New Jersey New Egypt, New Jersey Ocean City, New Jersey Pemberton, New Jersey Pennington, New Jersey Plainsboro, New Jersey Pleasantville, New Jersey Princeton, New Jersey Salem, New Jersey Sea Isle City, New Jersey Somers Point, New Jersey Trenton, New Jersey Tuckahoe, New Jersey Tuckerton, New Jersey Vincentown, New Jersey Vineland, New Jersey Wildwood, New Jersey Woodbury, New Jersey These geographic regions are also served by area code 609.
How These Figures Were Built
These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 640, not live customer counts.
Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.
They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.
Population data and locality matching provided by GeoNames.
Last refreshed: April 15, 2026 6:22 pm