Area code 307

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Area code for the US state of Wyoming

title: "Area code 307" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["area-codes-in-the-united-states", "area-codes-in-wyoming", "telecommunications-related-introductions-in-1947"] description: "Area code for the US state of Wyoming" topic_path: "engineering" source: "https://en.wikipedia.org/wiki/Area_code_307" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Area code for the US state of Wyoming ::

Image:Area_code_WY.png|right|Wyoming's numbering plan area and area code (blue)

  1. poly 83 35 344 34 353 243 75 246 Area Code 397 poly 347 139 425 139 420 0 343 0 Area code 605 poly 348 139 429 139 420 243 352 243 Area code 308 poly 155 243 154 274 418 272 418 244 Area code 970 poly 77 192 1 192 1 273 152 273 154 244 72 244 Area code 435 poly 0 45 11 64 14 69 33 62 40 58 53 59 66 58 72 49 82 63 84 36 343 35 343 0 1 0 Area code 406 poly 0 44 10 63 15 68 32 65 39 59 52 59 64 59 72 49 81 59 78 192 0 192 Area codes 208 and 986 desc bottom-left

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 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.

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

References

References

  1. Culkin, Tommy. (March 7, 2023). "Happy 307 Day: Wyoming’s lone area code explained". Oil City News.

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