Area code 307

<imagemap> 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 </imagemap>

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.

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

• List of North American Numbering Plan area codes

External links

• NANPA area code map of Wyoming

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