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US Area Codes By State Explained

Richard Bagnell
Richard Bagnell

The US started out with just 77 area codes in 1947 and since then the number has increased to over 300. US Area Codes are managed by the North American Numbering Plan Administrator (NANPA). The NANPA is a part of the US Federal Communications Commission (FCC). Below is our list of US area codes by state.

State Area Codes
Alabama 205, 251, 256, 334, 659, 938
Alaska 907
Arizona 480, 520, 602, 623, 928
Arkansas 327, 479, 501, 870
California 209, 213, 279, 310, 323, 341, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 747, 760, 805, 818, 820, 831, 840, 858, 909, 916, 925, 949, 951
Colorado 303, 719, 720, 970
Connecticut 203, 475, 860, 959
Delaware 302
Florida 239, 305, 321, 352, 386, 407, 448, 561, 656, 689, 727, 754, 772, 786, 813, 850, 863, 904, 941, 954
Georgia 229, 404, 470, 478, 678, 706, 762, 770, 912, 943
Hawaii 808
Idaho 208, 986
Illinois 217, 224, 309, 312, 331, 447, 464, 618, 630, 708, 730, 773, 779, 815, 847, 872
Indiana 219, 260, 317, 463, 574, 765, 812, 930
Iowa 319, 515, 563, 641, 712
Kansas 316, 620, 785, 913
Kentucky 270, 364, 502, 606, 859
Lousiana 225, 318, 337, 504, 985
Maine 207
Maryland 227, 240, 301, 410, 443, 667
Massachusetts 339, 351, 413, 508, 617, 774, 781, 857, 978
Michigan 231, 248, 269, 313, 517, 586, 616, 679 734, 810, 906, 947, 989
Minnesota 218, 320, 507, 612, 651, 763, 952
Mississippi 228, 601, 662, 769
Missouri 314, 417, 557, 573, 636, 660, 816, 975
Montana 406
Nebraska 308, 402, 531
Nevada 702, 725, 775
New Hampshire 603
New Jersey 201, 551, 609, 640, 732, 848, 856, 862, 908, 973
New Mexico 505, 575
New York 212, 315, 332, 347, 363, 516, 518, 585, 607, 631, 646, 680, 716, 718, 838, 845, 914, 917, 929, 934
North Carolina 252, 336, 704, 743828, 910, 919, 980, 984
North Dakota 701
Ohio 216220, 234, 283, 326, 330, 380, 419, 440, 513, 567, 614, 740, 937
Oklahoma 405, 539, 572, 580, 918
Oregon 458503, 541, 971
Pennsylvania 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 878
Rhode Island 401
South Carolina 803, 839, 843, 854, 864
South Dakota 605
Tennessee 423, 615, 629, 731, 865, 901, 931
Texas 210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 682, 713, 726, 737, 806, 817, 830, 832, 903, 915, 936, 940, 945, 956, 972, 979
Utah 385, 435, 801
Vermont 802
Virginia 276, 434, 540, 571, 703, 757, 804, 826, 948
Washington 206, 253, 360, 425, 509, 564 
Washington DC 202, 771
West Virginia 304, 681
Wisconsin 262, 274 414, 534, 608, 715, 920
Wyoming 307

Toll-Free Area Codes

Type Area Codes
Toll-free 800, 833, 844, 855, 866, 877, 888

In the US and its territories, area codes are assigned to specific geographic areas. Overlays can be introduced to create additional numbers in high-population areas. The overlay area code system allows two or more area codes to be assigned to the same geographical area. However, each individual telephone number only has one area code.

Overlays and splits are especially common in busy cities, including, San Francisco, San Diego, Austin, New York City, Detroit, Chicago, Los Angeles, Dallas, Oklahoma City, Philadelphia, Jacksonville, Houston and many more

The North American Numbering Plan (NANP) was created in 1947 by AT&T with the Bell System to standardize dialing practices across the US, Canada, and some Caribbean nations. It also helped with long distance calling. The NANP area code system was developed to unify the various numbering systems in use at the time. It came into public use in 1951.

There are 7 toll-free area codes that do not represent a specific geographic region.

Parts of A US Phone Number

Phone numbers in the US generally consist on 10 or 11 digits. First comes the single digit country code that is normally only used when calling from outside the country. The next three digits of a phone number are called the Area/NPA (Numbering Plan Area) code. Area codes are three-digit numbers that represent specific geographical areas. The next three digits are called the Central Office Code (NXX). The final four digits is the subscriber number.

Parts Of a Phone Number US
Areacode

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