Area code 307

North American Area code 307 is the area code that serves the entire U.S. state of Wyoming. It is one of the original area codes created in 1947.

Map of Wyoming showing its area code in blue (with border states)

Because it is sparsely populated, Wyoming is one of only 11 states (as of April 8, 2020) to only have one area code.

Communities included
  • 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.
Wyoming area codes: 307
North: 406
West: 208/986, 406, 435 Area code 307 East: 605, 308
South: 435, 970
Colorado area codes: 303/720, 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

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