The United States (U.S.) uses the country code 1 for international dialing. Within the U.S., different states and regions are assigned specific area codes, which can sometimes overlap due to the high demand for phone numbers. Below is a list of the primary area codes organized by U.S. states and territories.

Major U.S. Area Codes by State:

Alabama

• 205, 251, 256, 334, 938

Alaska

• 907

Arizona

• 480, 520, 602, 623, 928

Arkansas

• 327, 479, 501, 870

California

• 209, 213, 279, 310, 323, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 650, 661, 669, 707, 714, 747, 805, 818, 831, 858, 909, 916, 925, 949, 951

Colorado

• 303, 719, 720, 970

Connecticut

• 203, 475, 860, 959

Delaware

• 302

District of Columbia (Washington, D.C.)

• 202

Florida

• 239, 305, 321, 352, 386, 407, 561, 727, 754, 772, 786, 813, 850, 863, 904, 941, 954

Georgia

• 229, 404, 470, 478, 678, 706, 762, 770, 912

Hawaii

• 808

Idaho

• 208, 986

Illinois

• 217, 224, 309, 312, 331, 447, 464, 618, 630, 708, 773, 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

Louisiana

• 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, 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, 732, 848, 856, 862, 908, 973

New Mexico

• 505, 575

New York

• 212, 315, 332, 347, 516, 518, 585, 607, 631, 646, 680, 716, 718, 845, 914, 917, 929, 934

North Carolina

• 252, 336, 704, 743, 828, 910, 919, 980, 984

North Dakota

• 701

Ohio

• 216, 220, 234, 283, 326, 330, 380, 419, 440, 513, 567, 614, 740, 937

Oklahoma

• 405, 539, 580, 918

Oregon

• 458, 503, 541, 971

Pennsylvania

• 215, 223, 267, 272, 412, 445, 484, 570, 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, 956, 972, 979

Utah

• 385, 435, 801

Vermont

• 802

Virginia

• 276, 434, 540, 571, 703, 757, 804

Washington

• 206, 253, 360, 425, 509, 564

West Virginia

• 304, 681

Wisconsin

• 262, 414, 534, 608, 715, 920

Wyoming

• 307

U.S. Territories:

• American Samoa: 684
• Guam: 671
• Northern Mariana Islands: 670
• Puerto Rico: 787, 939
• U.S. Virgin Islands: 340

Other Notable Codes:

• Toll-Free Numbers: 800, 833, 844, 855, 866, 877, 888

This list covers the primary area codes in each U.S. state and territory. Many states have overlapping or multiple area codes due to their population sizes and demand for numbers. If you need specific area codes or further details, feel free to ask!