UNITED STATES AREA CODES

The United States uses over 275 area codes which are assigned to specific geographic areas and thirteen other area codes that are not assigned to a geographic area. A few states have only one area code such as Alaska, Delaware, Hawaii, Idaho, Maine, Montana, New Hampshire, North Dakota, Rhode Island, South Dakota, Vermont, and Wyoming.

The states using the most area codes are California which is currently using 31 area codes, Texas 26 area codes, Florida 17 area codes, and New York 15 area codes. Although area codes are not assigned based upon population the locations with greater populations have an increased demand for area codes.

The non-geographic area codes utilized in the United States are 456, 500, 533, 544, 566, 700, 710, 800, 855, 866, 877, 888 and 900.

While many United States locations are assigned a single area code others are within geographic overlays. In an overlay, the new area code has the same geographic boundary as the existing area code. Existing phone numbers and local calling scopes don't change, but 10-digit local dialing becomes necessary. Ten digit dialing is necessary because two different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.

Some United States area codes have been created as a result of a geographic split. A geographic split divides an area code into two or more areas with each area receiving its own area code. Although local calls from one area code into another require dialing 10 digits, the local calling range usually does not change.

In the United States the responsibility for area codes is shared by Federal and state authorities. The North American Numbering Plan Administrator (NANP) is responsible for the administration, assignment and management of area codes. The FCC has jurisdiction over the telephone number administration. The FCC gives states the authority to decide when and how to introduce new area codes. This state authority is typically administered by the various state utility commissions.

United States Area Codes Currently in Use
STATE AREA CODE
Alabama 205, 251, 256, 334, 938
Alaska 907
Arizona 480, 520, 602, 623, 928
Arkansas 479, 501, 870
California 209, 213, 310, 323, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 650, 657, 661, 669, 707, 714, 747, 760, 805, 818, 831, 858, 909, 916, 925, 949, 951
Colorado 303, 719, 720, 970
Connecticut 203, 475, 860, 959
Delaware 302
District of Columbia 202
Florida 239, 305, 321, 352, 386, 407, 561, 689, 727, 754, 772, 786, 813, 850, 863, 904, 941, 954
Georgia 229, 404, 470, 478, 678, 706, 762, 770, 912
Hawaii 808
Idaho 208
Illinois 217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872
Indiana 219, 260, 317, 574, 765, 812
Iowa 319, 515, 563, 641, 712
Kansas 316, 620, 785, 913
Kentucky 270, 364, 502, 606, 859
Louisiana 225, 318, 337, 504, 985
Maine 207
Maryland 240, 301, 410, 443, 667
Massachusetts 339, 351, 413, 508, 617, 774, 781, 857, 978
Michigan 231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 947, 989
Minnesota 218, 320, 507, 612, 651, 763, 952
Mississippi 228, 601, 662, 769
Missouri 314, 417, 573, 636, 660, 816
Montana 406
Nebraska 308, 402, 531
Nevada 702, 725, 775
New Hampshire 603
New Jersey 201, 551, 609, 732, 848, 856, 862, 908, 973
New Mexico 505, 575
New York 212, 315, 347, 516, 518, 585, 607, 631, 646, 716, 718, 845, 914, 917, 929
North Carolina 252, 336, 704, 828, 910, 919, 980, 984
North Dakota 701
Ohio 216, 234, 330, 419, 440, 513, 567, 614, 740, 937
Oklahoma 405, 539, 580, 918
Oregon 458, 503, 541, 971
Pennsylvania 215, 267, 272, 412, 484, 570, 610, 717, 724, 814, 878
Puerto Rico 787, 939
Rhode Island 401
South Carolina 803, 843, 864
South Dakota 605
Tennessee 423, 615, 731, 865, 901, 931
Texas 210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 682, 713, 737, 806, 817, 830, 832, 903, 915, 936, 940, 956, 972, 979
Utah 385, 435, 801
Vermont 802
Virginia 276, 434, 540, 571, 703, 757, 804
Washington 206, 253, 360, 425, 509
Washngton, DC 202
West Virginia 304, 681
Wisconsin 262, 414, 534, 608, 715, 920
Wyoming 307
Toll Free Numbers 800, 844, 855, 866, 877, 888


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