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Where Is 640 Area Code?

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Database Updated: August 8, 2025
New Jersey Phone Number Lookups
Where Is 640 Area Code?

Where is Area Code 640?

Area code 640 is located in New Jersey and covers Trenton, Atlantic City, and Pleasantville. It is an overlay for area code 609 and serves the same area This area code is part of a geographic numbering plan and is used for specific locations within the state. Here are some of the key areas covered by area code 640:

  • Burlington County
  • Mercer County
  • Ocean County
  • Atlantic County
  • Middlesex County
  • Camden County
  • Monmouth County
  • Cape May County

For more detailed information about the regions covered by area code 640, you can visit the New Jersey Board of Public Utilities.

New Jersey Board of Public Utilities
44 S. Clinton Avenue, Trenton, NJ 08625
Phone: (800)-624-0241

What time zone is 640 area code in the USA?

The 640 area code is situated in the Eastern Time Zone (ET) of the United States. This time zone observes daylight saving time, meaning that clocks are set forward by one hour in the spring and set back by one hour in the fall. This adjustment helps to make better use of daylight during the longer days of summer. For accurate timekeeping, you can refer to the National Institute of Standards and Technology.

History of the 640 Area Code

The 640 area code was introduced as part of an overlay plan to meet the growing demand for telephone numbers in New Jersey. Overlays are implemented when an existing area code runs out of available numbers, and a new code is added to the same geographic region. This allows for the continued expansion of telecommunications services without requiring existing numbers to change.

For more information on the history and administration of area codes, you can visit the North American Numbering Plan Administrator (NANPA).

NANPA Mailing Address
One Tower Center Boulevard
Suite 800
East Brunswick, NJ 08816

NANPA Customer Support
Tel: 1-866-623-2282
Email: support@nanpa.com
Fax: 571-363-3838

How Many People Use the 640 Area Code?

The population in region served by area code 640 is over 3,5 million people. The U.S. Census Bureau provides detailed demographic information for these areas, which can be useful for understanding the number of people potentially using this area code. For comprehensive population data, you can visit the U.S. Census Bureau.

U.S. Census Bureau
4600 Silver Hill Road, Washington, DC 20233
Tel: 301-763-INFO (4636) or 800-923-8282

Is the 640 Area Code Toll-Free?

The 640 area code is a geographic code, not a toll-free number. Geographic area codes are assigned to specific regions and are used for local calls within those areas. Toll-free numbers, on the other hand, are not tied to a specific location and typically begin with prefixes such as 800, 888, 877, 866, 855, 844, or 833. These numbers allow callers to reach businesses and individuals without incurring long-distance charges.

For more information on toll-free numbers and their operation, you can refer to the Federal Communications Commission.

Federal Communications Commission
45 L Street NE, Washington, DC 20554
Tel: 1-888-CALL FCC (225-5322)
https://www.fcc.gov/

New Jersey Phone Numbers
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