List of 3 Digit US Area Codes

In the United States, an area code is a three-digit code that is part of a phone number. It is used to designate a specific geographic region for the purpose of routing telephone calls. When you dial a phone number, the area code helps the telephone system determine which part of the country the call should be directed to.

In the United States, area codes are assigned and managed by the North American Numbering Plan Administration (NANPA). The NANPA is responsible for the administration and assignment of telephone numbers, including area codes, within the North American Numbering Plan (NANP). The NANP encompasses the United States, Canada, certain Caribbean countries, and U.S. territories.

US Area Code List

The process of assigning area codes involves taking into account factors such as population growth, the demand for new telephone numbers, and the need for efficient call routing. When an area is running out of available telephone numbers, a new area code may be introduced to provide additional capacity.

The three-digit area codes are structured as follows:

  • The first digit is a number between 2 and 9.
  • The second digit can be any number between 0 and 9.
  • The third digit can also be any number between 0 and 9.

The assignment of area codes is a continuous process, and new area codes are introduced as needed. Changes to area codes can also occur through processes like overlay plans, where a new area code is introduced to cover the same geographical area as an existing one, and all new numbers in that region are assigned to the new area.

U.S. Area Codes List

State NamesArea Codes
Alaska907
Alabama205, 251, 256, 334
Arkansas479, 501, 870
Arizona480, 520, 602, 623, 928
California209, 213, 310, 323, 408, 415, 510, 530, 559, 562, 619, 626, 650, 661, 707,
714, 760, 805, 818, 831, 858, 909, 916, 925, 949, 951
Colorado303, 719, 970
Connecticut203, 860
District of Columbia202
Delaware302
Florida239, 305, 321, 352, 386, 407, 561, 727, 772, 813, 850, 863, 904, 941, 954
Georgia229, 404, 478, 706, 770, 912
Hawaii808
Iowa319, 515, 563, 641, 712
Idaho208
Illinois217, 309, 312, 618, 630, 708, 773, 815, 847
Indiana219, 260, 317, 574, 765, 812
Kansas316, 620, 785, 913
Kentucky270, 502, 606, 859
Louisiana225, 318, 337, 504, 985
Massachusetts413, 508, 617, 781, 978
Maryland301, 410
Maine207
Michigan231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 989
Minnesota218, 320, 507, 612, 651, 763, 952
Missouri314, 417, 573, 636, 660, 816
Mississippi228, 601, 662
Montana406
North Carolina252, 336, 704, 828, 910, 919
North Dakota701
Nebraska308, 402
New Hampshire603
New Jersey201, 609, 732, 856, 908, 973
New Mexico505, 575
Nevada702, 775
New York212, 315, 516, 518, 585, 607, 631, 716, 718, 845, 914
Ohio216, 330, 419, 440, 513, 614, 740, 937
Oklahoma405, 580, 918
Oregon503, 541
Pennsylvania215, 412, 570, 610, 717, 724, 814
Rhode Island401
South Carolina803, 843, 864
South Dakota605
Tennessee423, 615, 731, 865, 901, 931
Texas210, 214, 254, 281, 325, 361, 409, 432, 512, 713, 806, 817, 830, 903, 915,
936, 940, 956, 972, 979
Utah435, 801
Virginia276, 434, 540, 703, 757, 804
Vermont802
Washington206, 253, 360, 425, 509
Wisconsin262, 414, 608, 715, 920
West Virginia304
Wyoming307

These area codes also play a role in helping people identify the general location of a phone number, although this is becoming less reliable due to factors such as number portability, where individuals can keep their phone numbers even if they move to a different area.

Are the US Area Code and ZIP Code the Same?

No, area codes and United States ZIP codes are not the same. They serve different purposes and represent different geographic divisions.

1. Area Code: An area code is a numerical code used in the North American Numbering Plan (NANP) to identify a specific geographic region when dialling a phone number. Area codes are used to route telephone calls to a particular area. For example, in the United States, area code 212 is associated with parts of Manhattan in New York City.

2. ZIP Code: ZIP codes, on the other hand, are used by the United States Postal Service (USPS) to efficiently route and deliver mail. ZIP codes are numerical codes that represent specific geographic areas. The term “ZIP” stands for “Zone Improvement Plan.” Unlike area codes, which are primarily used for telephone purposes, ZIP codes are used for postal purposes. For instance, 10001 is a ZIP code in New York City.

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