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.^[1] It is one of the 86 original North American area codes created by the American Telephone and Telegraph Company (AT&T) in 1947.^[1]

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

Wyoming's sparse population has not required more than one area code for the state. As of May 2025, it was one of only eleven states with only one area code.^{[citation needed]}

Service area

The numbering plan area 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

• List of North American Numbering Plan area codes