Area code 307

Area code 307 is the telephone area code in the North American Numbering Plan for the entire U.S. state of Wyoming. It is one of the 86 original North American area codes created by the American Telephone and Telegraph Company (AT&T) in 1947.

Wyoming's numbering plan area and area code (blue)
Wyoming's numbering plan area and area code (blue)

Because it is sparsely populated, Wyoming is one of only eleven states (as of April 8, 2020) with only one area code.

Service area

The numbering plan includes the following communities, with their respective central office codes:

  • Afton: 226, 248, 884, 885, 886, 887
  • Albin: 246
  • Alpine: 654, 656
  • Baggs: 380, 383
  • Basin: 440, 568
  • Big Piney: 260, 276
  • Buffalo: 217, 278, 425, 620, 621, 684, 719
  • Burlington: 762
  • Burns: 547
  • Casper: 215, 224, 230, 232, 233, 234, 235, 236, 237, 243, 247, 251, 253, 258, 259, 261, 262, 265, 266, 267, 268, 277, 315, 333, 337, 377, 439, 441, 462, 472, 473, 577, 702, 724, 776, 797, 995
  • Cheyenne: 214, 220, 221, 222, 256, 274, 275, 286, 287, 316, 317, 365, 369, 414, 421, 426, 432, 433, 443, 459, 475, 477, 509, 514, 529, 630, 631, 632, 633, 634, 635, 637, 638, 640, 650, 666, 701, 757, 771, 772, 773, 775, 777, 778, 823, 829, 920, 996
  • Chugwater: 422
  • Clearmont: 758
  • Cody: 204, 213, 250, 272, 296, 527, 578, 586, 587, 712, 899
  • Cokeville: 229, 270, 279, 600
  • Douglas: 298, 351, 358, 359, 624, 717
  • Dubois: 239, 450, 455
  • East Thermopolis: 480, 722, 864, 921
  • Encampment: 327
  • Evanston: 255, 288, 313, 444, 497, 677, 679, 708, 783, 789, 799
  • Frannie: 664
  • Gas Hills: 457
  • Gillette: 228, 257, 299, 363, 487, 567, 622, 660, 670, 680, 681, 682, 685, 686, 687, 688, 689, 696, 704
  • Glendo: 735
  • Glenrock: 309, 436, 554, 741
  • Green River: 297, 364, 466, 707, 870, 871, 872, 875
  • Greybull: 373, 765
  • Guernsey: 836
  • Hanna: 325, 339, 348
  • Hulett: 467
  • Jackson: 200, 201, 203, 249, 264, 413, 690, 699, 713, 730, 732, 733, 734, 739, 740, 774
  • Kaycee: 738
  • Kemmerer: 723, 727, 800, 828, 877
  • La Barge: 386, 390
  • La Grange: 409, 834
  • Lander: 206, 330, 332, 335, 345, 349, 438, 488, 714
  • Laramie: 223, 314, 343, 399, 460, 703, 721, 742, 745, 755, 760, 761, 766, 977
  • Lingle: 205, 837
  • Lovell: 548, 731
  • Lusk: 216, 334, 340, 481, 759
  • Lyman: 787
  • Manila: 874
  • Medicine Bow: 379, 404, 520
  • Meeteetse,: 868
  • Midwest: 437
  • Moran: 541, 543, 999
  • Moorcroft: 391, 756
  • Mountain View: 747, 780, 782
  • Newcastle: 465, 629, 744, 746, 941, 949
  • Pine Bluffs: 245
  • Pinedale: 231, 360, 367, 537, 749
  • Powell: 202, 219, 254, 271, 716, 754, 764
  • Rawlins: 320, 321, 324, 328, 370, 417, 710
  • Riverton: 240, 463, 709, 840, 850, 851, 854, 855, 856, 857, 858
  • Rock River: 378, 798
  • Rock Springs: 209, 212, 252, 350, 352, 354, 362, 371, 382, 389, 448, 522, 705, 922
  • Saratoga: 326, 329, 447
  • Sheridan: 429, 461, 533, 655, 672, 673, 674, 675, 683, 706, 751, 752, 763
  • Shoshoni: 728, 876
  • Sundance: 281, 282, 283, 290, 790
  • Ten Sleep: 366
  • Thermopolis: 480, 722, 864, 921
  • Torrington: 338, 401, 532, 534, 575, 715
  • Upton: 468
  • West Edgemont: 663
  • West Lyman: 788
  • Wheatland: 241, 269, 322, 331, 720, 779, 881
  • Worland: 347, 375, 388, 431, 718
  • Wright: 464, 939
  • Premium calls (unassigned): 208, 211, 307, 308, 311, 406, 411, 470, 511, 536, 555, 558, 559, 605, 611, 700, 711, 725, 811, 911, 950, 958, 959, 970, 976

See also
Wyoming area codes: 307
North: 406
West: 208/986, 406, 435 307 East: 605, 308
South: 435, 970
Colorado area codes: 303/720/983, 719, 970
Utah area codes: 385/801, 435
Idaho area codes: 208/986
Montana area codes: 406
South Dakota area codes: 605
Nebraska area codes: 308, 402/531

43°00′N 107°30′W

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