| Prefixes | City | County | Line Type | Company |
|---|---|---|---|---|
| 307-200 | Rupert | Minidoka | Landline | Level 3 Communications, Llc... |
| 307-202 | Powell | Park | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-203 | Jackson | Teton | Cell Phone | Sprint Spectrum L.p. |
| 307-212 | Cheyenne | Laramie | Landline | Level 3 Communications, Llc... |
| 307-213 | Cody | Park | Landline | Level 3 Communications, Llc... |
| 307-214 | Cheyenne | Laramie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-217 | Buffalo | Johnson | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-220 | Cheyenne | Laramie | Cell Phone | Tmobile Usa, Inc. |
| 307-221 | Cheyenne | Laramie | Cell Phone | Sprint Spectrum L.p. |
| 307-222 | Cheyenne | Laramie | Landline | Level 3 Communications, Llc... |
| 307-223 | Laramie | Albany | Landline | Level 3 Communications, Llc... |
| 307-224 | Casper | Natrona | Landline | Level 3 Communications, Llc... |
| 307-226 | Bosler | Albany | Landline | Unknown |
| 307-229 | Cheyenne | Laramie | Landline | Unknown |
| 307-231 | Pinedale | Sublette | Cell Phone | Cellco Partnership Dba Veri... |
| 307-232 | Casper | Natrona | Landline | Qwest Corporation |
| 307-233 | Casper | Natrona | Landline | Qwest Corporation |
| 307-234 | Casper | Natrona | Landline | Qwest Corporation |
| 307-235 | Casper | Natrona | Landline | Qwest Corporation |
| 307-237 | Casper | Natrona | Landline | Qwest Corporation |
| 307-238 | Hillsdale | Laramie | Landline | Contact Communications, Inc... |
| 307-240 | Riverton | Fremont | Cell Phone | Cellco Partnership Dba Veri... |
| 307-242 | Yellowstone National Park | Park | Landline | Qwest Corporation |
| 307-243 | Wilson | Teton | Landline | Contact Communications, Inc... |
| 307-245 | Pine Bluffs | Laramie | Landline | Rt Communications |
| 307-246 | Albin | Laramie | Landline | Rt Communications |
| 307-247 | Casper | Natrona | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-248 | Worland | Washakie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-250 | Cody | Park | Cell Phone | Cellco Partnership Dba Veri... |
| 307-251 | Casper | Natrona | Cell Phone | Cellco Partnership Dba Veri... |
| 307-252 | Cody | Park | Landline | Uintah Basin Electronic Tel... |
| 307-253 | Jackson | Teton | Landline | Qwest Corporation |
| 307-254 | Powell | Park | Cell Phone | Cellco Partnership Dba Veri... |
| 307-255 | Evanston | Uinta | Landline | Uintah Basin Electronic Tel... |
| 307-256 | Cheyenne | Laramie | Cell Phone | Sprint Spectrum L.p. |
| 307-257 | Gillette | Campbell | Landline | Level 3 Communications, Llc... |
| 307-258 | Casper | Natrona | Cell Phone | Cellco Partnership Dba Veri... |
| 307-259 | Casper | Natrona | Cell Phone | Cellco Partnership Dba Veri... |
| 307-261 | Casper | Natrona | Landline | Qwest Corporation |
| 307-262 | Casper | Natrona | Cell Phone | Cellco Partnership Dba Veri... |
| 307-264 | Casper | Natrona | Cell Phone | Nextel Communications, Inc. |
| 307-265 | Casper | Natrona | Landline | Qwest Corporation |
| 307-266 | Casper | Natrona | Landline | Qwest Corporation |
| 307-267 | Casper | Natrona | Cell Phone | Western Wireless Corporatio... |
| 307-268 | Casper | Natrona | Landline | Qwest Corporation |
| 307-269 | Alcova | Natrona | Landline | Level 3 Communications, Llc... |
| 307-270 | Indianapolis | Marion | Cell Phone | Union Telephone Company Dba... |
| 307-271 | Powell | Park | Landline | Level 3 Communications, Llc... |
| 307-272 | Cody | Park | Cell Phone | Cellco Partnership Dba Veri... |
| 307-273 | Farson | Sweetwater | Landline | Centurytel Of Wyoming, Inc.... |
| 307-275 | Cheyenne | Laramie | Landline | Commpartners, Llc Wy |
| 307-276 | Big Piney | Sublette | Landline | Centurytel Of Wyoming, Inc.... |
| 307-277 | Casper | Natrona | Cell Phone | Cellco Partnership Dba Veri... |
| 307-278 | Buffalo | Johnson | Landline | Level 3 Communications, Llc... |
| 307-279 | Cokeville | Lincoln | Landline | All West Communications, In... |
| 307-281 | Sundance | Crook | Cell Phone | Cellco Partnership Dba Veri... |
| 307-282 | Cheyenne | Laramie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-283 | Sundance | Crook | Landline | Range Telephone Cooperative... |
| 307-285 | Gillette | Campbell | Landline | Unknown |
| 307-286 | Cheyenne | Laramie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-287 | Cheyenne | Laramie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-288 | Evanston | Uinta | Landline | Level 3 Communications, Llc... |
| 307-290 | Sundance | Crook | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-298 | Douglas | Converse | Landline | Level 3 Communications, Llc... |
| 307-299 | Gillette | Campbell | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-313 | Evanston | Uinta | Landline | Level 3 Communications, Llc... |
| 307-315 | Casper | Natrona | Landline | Bresnan Broadband Of Wyomin... |
| 307-316 | Cheyenne | Laramie | Landline | 360networks (usa) Inc. Wy |
| 307-320 | Rawlins | Carbon | Cell Phone | Union Telephone Company Dba... |
| 307-321 | Rawlins | Carbon | Cell Phone | Cellco Partnership Dba Veri... |
| 307-322 | Wheatland | Platte | Landline | Qwest Corporation |
| 307-324 | Rawlins | Carbon | Landline | Qwest Corporation |
| 307-325 | Hanna | Carbon | Cell Phone | Union Telephone Co. Wy |
| 307-326 | Saratoga | Carbon | Cell Phone | Union Telephone Co. Wy |
| 307-327 | Encampment | Carbon | Cell Phone | Union Telephone Co. Wy |
| 307-328 | Rawlins | Carbon | Landline | Qwest Corporation |
| 307-329 | Saratoga | Carbon | Cell Phone | Union Telephone Company Dba... |
| 307-330 | Jackson | Teton | Cell Phone | Union Telephone Company Dba... |
| 307-331 | Wheatland | Platte | Cell Phone | Cellco Partnership Dba Veri... |
| 307-332 | Lander | Fremont | Landline | Qwest Corporation |
| 307-333 | Casper | Natrona | Landline | Bresnan Broadband Of Wyomin... |
| 307-334 | Lusk | Niobrara | Landline | Qwest Corporation |
| 307-335 | Lander | Fremont | Landline | Qwest Corporation |
| 307-339 | Medicine Bow | Carbon | Cell Phone | Union Telephone Company Dba... |
| 307-340 | Veteran | Goshen | Cell Phone | Cellco Partnership Dba Veri... |
| 307-341 | Cody | Park | Landline | Project Telephone Co., Inc. |
| 307-342 | Rapid City | Pennington | Landline | Unknown |
| 307-343 | Gillette | Campbell | Cell Phone | Cellco Partnership Dba Veri... |
| 307-344 | Yellowstone National Park | Park | Landline | Qwest Corporation |
| 307-347 | Worland | Washakie | Landline | Rt Communications |
| 307-348 | Elk Mountain | Carbon | Cell Phone | Union Telephone Co. Wy |
| 307-349 | Lander | Fremont | Cell Phone | Cellco Partnership Dba Veri... |
| 307-350 | Rock Springs | Sweetwater | Cell Phone | Union Telephone Company Dba... |
| 307-351 | Douglas | Converse | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-352 | Rock Springs | Sweetwater | Landline | Qwest Corporation |
| 307-353 | Alta | Teton | Landline | Columbine Telco Dba Silver... |
| 307-354 | Rock Springs | Sweetwater | Cell Phone | Union Telephone Company Dba... |
| 307-355 | Lander | Fremont | Landline | Unknown |
| 307-356 | Shirley Basin | Carbon | Cell Phone | Union Telephone Co. Wy |
| 307-357 | Riverton | Fremont | Landline | Unknown |
| 307-358 | Douglas | Converse | Landline | Qwest Corporation |
| 307-359 | Douglas | Converse | Cell Phone | Cellco Partnership Dba Veri... |
| 307-360 | Rock Springs | Sweetwater | Cell Phone | Union Telephone Company Dba... |
| 307-362 | Rock Springs | Sweetwater | Landline | Qwest Corporation |
| 307-366 | Ten Sleep | Washakie | Landline | Tri County Telephone Asso... |
| 307-367 | Pinedale | Sublette | Landline | Centurytel Of Wyoming, Inc.... |
| 307-368 | Jackson | Teton | Landline | Unknown |
| 307-371 | Rock Springs | Sweetwater | Cell Phone | Cellco Partnership Dba Veri... |
| 307-372 | Gillette | Campbell | Landline | Unknown |
| 307-376 | Big Piney | Sublette | Landline | Unknown |
| 307-377 | Casper | Natrona | Cell Phone | Union Telephone Company |
| 307-378 | Garrett | Albany | Cell Phone | Union Telephone Co. Wy |
| 307-379 | Medicine Bow | Carbon | Landline | Centurytel Of Wyoming, Inc.... |
| 307-380 | Mountain View | Uinta | Cell Phone | Union Telephone Company Dba... |
| 307-382 | Rock Springs | Sweetwater | Landline | Qwest Corporation |
| 307-383 | Baggs | Carbon | Landline | Dubois Telephone Exchange,... |
| 307-384 | Casper | Natrona | Landline | Contact Communications, Inc... |
| 307-385 | Douglas | Converse | Landline | Unknown |
| 307-386 | La Barge | Lincoln | Cell Phone | Union Telephone Co. Wy |
| 307-388 | Thermopolis | Hot Springs | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-389 | Rock Springs | Sweetwater | Cell Phone | Cellco Partnership Dba Veri... |
| 307-390 | Gillette | Campbell | Cell Phone | Union Telephone Company Dba... |
| 307-392 | Gillette | Campbell | Landline | Level 3 Communications, Llc... |
| 307-399 | Laramie | Albany | Cell Phone | Cellco Partnership Dba Veri... |
| 307-406 | Cheyenne | Laramie | Landline | Unknown |
| 307-413 | Jackson | Teton | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-421 | Cheyenne | Laramie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-422 | Chugwater | Platte | Landline | Chugwater Telephone Co. |
| 307-424 | Riverton | Fremont | Landline | Unknown |
| 307-426 | Cheyenne | Laramie | Landline | Bresnan Broadband Of Wyomin... |
| 307-431 | Worland | Washakie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-432 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-433 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-435 | Bosler | Albany | Landline | Unknown |
| 307-436 | Glenrock | Converse | Landline | Qwest Corporation |
| 307-437 | Midwest | Natrona | Landline | Rt Communications |
| 307-438 | Lander | Fremont | Cell Phone | Cellco Partnership Dba Veri... |
| 307-444 | Evanston | Uinta | Landline | All West Wy, Inc. |
| 307-445 | Dubois | Fremont | Landline | Unknown |
| 307-450 | Dubois | Fremont | Cell Phone | Union Telephone Company Dba... |
| 307-455 | Dubois | Fremont | Landline | Dubois Telephone Exchange,... |
| 307-457 | Riverton | Fremont | Landline | Rt Communications |
| 307-459 | Cheyenne | Laramie | Landline | Level 3 Communications, Llc... |
| 307-460 | Laramie | Albany | Landline | Level 3 Communications, Llc... |
| 307-461 | Sheridan | Sheridan | Landline | Level 3 Communications, Llc... |
| 307-462 | Casper | Natrona | Landline | Level 3 Communications, Llc... |
| 307-463 | Riverton | Fremont | Landline | Level 3 Communications, Llc... |
| 307-464 | Wright | Campbell | Landline | Qwest Corporation |
| 307-465 | Osage | Weston | Landline | Rt Communications |
| 307-466 | Green River | Sweetwater | Cell Phone | Cellco Partnership Dba Veri... |
| 307-467 | Hulett | Crook | Landline | Rt Communications |
| 307-468 | Upton | Weston | Landline | Rt Communications |
| 307-469 | Hyattville | Big Horn | Landline | Tri County Telephone Asso... |
| 307-472 | Casper | Natrona | Landline | Qwest Corporation |
| 307-473 | Casper | Natrona | Landline | Qwest Corporation |
| 307-477 | Cheyenne | Laramie | Cell Phone | Union Telephone Company |
| 307-479 | Rock Springs | Sweetwater | Landline | Unknown |
| 307-481 | Torrington | Goshen | Landline | 360networks (usa) Inc. Wy |
| 307-482 | Cheyenne | Laramie | Landline | Unknown |
| 307-483 | Riverton | Fremont | Landline | Unknown |
| 307-484 | Cheyenne | Laramie | Landline | Unknown |
| 307-486 | Crowheart | Fremont | Landline | Dubois Telephone Exchange,... |
| 307-493 | Cheyenne | Laramie | Landline | Unknown |
| 307-497 | Evanston | Uinta | Landline | All West Communications, In... |
| 307-498 | Cheyenne | Laramie | Landline | Unknown |
| 307-514 | Cheyenne | Laramie | Landline | Bresnan Broadband Of Wyomin... |
| 307-520 | Garrett | Albany | Cell Phone | Union Telephone Company Dba... |
| 307-522 | Riverton | Fremont | Landline | Contact Communications, Inc... |
| 307-524 | Riverton | Fremont | Landline | Unknown |
| 307-527 | Cody | Park | Landline | Qwest Corporation |
| 307-528 | Riverton | Fremont | Landline | Unknown |
| 307-529 | Riverton | Fremont | Landline | Ymax Communications Corp. Wy |
| 307-532 | Torrington | Goshen | Landline | United Tel Co West Wy Dba... |
| 307-534 | Torrington | Goshen | Landline | United Tel Co West Wy Dba... |
| 307-537 | Boulder | Sublette | Landline | Centurytel Of Wyoming, Inc.... |
| 307-540 | Cody | Park | Cell Phone | Union Telephone Company Dba... |
| 307-542 | Riverton | Fremont | Landline | Unknown |
| 307-543 | Moran | Teton | Landline | Qwest Corporation |
| 307-544 | Jeffrey City | Fremont | Landline | Rt Communications |
| 307-545 | Yellowstone National Park | Park | Landline | Qwest Corporation |
| 307-547 | Burns | Laramie | Landline | Rt Communications |
| 307-548 | Lovell | Big Horn | Landline | Tct West, Inc. |
| 307-549 | Cody | Park | Cell Phone | Union Telephone Company Dba... |
| 307-563 | Osage | Weston | Landline | Unknown |
| 307-567 | Gillette | Campbell | Cell Phone | Union Telephone Company |
| 307-568 | Basin | Big Horn | Landline | Tct West, Inc. |
| 307-574 | Powell | Park | Landline | Unknown |
| 307-575 | Torrington | Goshen | Cell Phone | Cellco Partnership Dba Veri... |
| 307-576 | Alta | Teton | Landline | Columbine Telco Dba Silver... |
| 307-577 | Casper | Natrona | Landline | Qwest Corporation |
| 307-578 | Cody | Park | Landline | Qwest Corporation |
| 307-581 | Gillette | Campbell | Landline | Unknown |
| 307-583 | Wheatland | Platte | Landline | Unknown |
| 307-586 | Cody | Park | Landline | Tri Tel, Inc. |
| 307-587 | Cody | Park | Landline | Qwest Corporation |
| 307-620 | Buffalo | Johnson | Cell Phone | Cellco Partnership Dba Veri... |
| 307-621 | Ogden | Weber | Cell Phone | Cellco Partnership Dba Veri... |
| 307-624 | Riverton | Fremont | Cell Phone | Western Wireless Corporatio... |
| 307-630 | Cheyenne | Laramie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-631 | Cheyenne | Laramie | Cell Phone | Cellco Partnership Dba Veri... |
| 307-632 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-633 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-634 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-635 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-637 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-638 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-640 | Cheyenne | Laramie | Cell Phone | Western Wireless Corporatio... |
| 307-642 | Spearfish | Lawrence | Landline | Unknown |
| 307-643 | Beulah | Crook | Landline | Qwest Corporation |
| 307-645 | Powell | Park | Landline | Project Telephone Co., Inc. |
| 307-646 | Riverton | Fremont | Landline | Unknown |
| 307-649 | Carpenter | Laramie | Landline | Rt Communications |
| 307-650 | Cheyenne | Laramie | Cell Phone | Nextel Communications, Inc. |
| 307-652 | Billings | Yellowstone | Landline | Unknown |
| 307-654 | Alpine | Lincoln | Landline | Silver Star Telephone Co.,... |
| 307-655 | Sheridan | Sheridan | Landline | Qwest Corporation |
| 307-660 | Gillette | Campbell | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-663 | Newcastle | Weston | Landline | Golden West Tel Coop Inc Db... |
| 307-664 | Deaver | Big Horn | Landline | Tct West, Inc. |
| 307-666 | Gillette | Campbell | Landline | Unknown |
| 307-667 | Cheyenne | Laramie | Landline | Unknown |
| 307-669 | Cheyenne | Laramie | Landline | Unknown |
| 307-670 | Gillette | Campbell | Cell Phone | Cellco Partnership Dba Veri... |
| 307-672 | Sheridan | Sheridan | Landline | Qwest Corporation |
| 307-673 | Sheridan | Sheridan | Landline | Qwest Corporation |
| 307-674 | Sheridan | Sheridan | Landline | Qwest Corporation |
| 307-675 | Sheridan | Sheridan | Landline | Advanced Communications Tec... |
| 307-677 | Sheridan | Sheridan | Cell Phone | Cellco Partnership Dba Veri... |
| 307-679 | Evanston | Uinta | Cell Phone | Cellco Partnership Dba Veri... |
| 307-680 | Gillette | Campbell | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-682 | Gillette | Campbell | Landline | Qwest Corporation |
| 307-683 | Banner | Sheridan | Landline | Qwest Corporation |
| 307-684 | Buffalo | Johnson | Landline | Qwest Corporation |
| 307-685 | Gillette | Campbell | Landline | Qwest Corporation |
| 307-686 | Gillette | Campbell | Landline | Qwest Corporation |
| 307-687 | Gillette | Campbell | Landline | Qwest Corporation |
| 307-688 | Gillette | Campbell | Landline | Qwest Corporation |
| 307-689 | Gillette | Campbell | Cell Phone | Cellco Partnership Dba Veri... |
| 307-690 | Jackson | Teton | Cell Phone | Cellco Partnership Dba Veri... |
| 307-699 | Jackson | Teton | Cell Phone | Cellco Partnership Dba Veri... |
| 307-701 | Cheyenne | Laramie | Cell Phone | Union Telephone Company |
| 307-705 | Rock Springs | Sweetwater | Cell Phone | Union Telephone Company |
| 307-710 | Baggs | Carbon | Cell Phone | Union Telephone Company |
| 307-721 | Laramie | Albany | Landline | Qwest Corporation |
| 307-722 | Mountain View | Uinta | Cell Phone | Union Telephone Company |
| 307-730 | Jackson | Teton | Cell Phone | Union Telephone Company Dba... |
| 307-732 | Jackson | Teton | Landline | Qwest Corporation |
| 307-733 | Jackson | Teton | Landline | Qwest Corporation |
| 307-734 | Jackson | Teton | Landline | Qwest Corporation |
| 307-735 | Glendo | Platte | Landline | Qwest Corporation |
| 307-736 | Arvada | Campbell | Landline | Range Telephone Cooperative... |
| 307-737 | Sheridan | Sheridan | Landline | Range Telephone Cooperative... |
| 307-738 | Kaycee | Johnson | Landline | Rt Communications |
| 307-739 | Jackson | Teton | Landline | Qwest Corporation |
| 307-742 | Laramie | Albany | Landline | Qwest Corporation |
| 307-743 | Casper | Natrona | Landline | Unknown |
| 307-745 | Laramie | Albany | Landline | Qwest Corporation |
| 307-746 | Newcastle | Weston | Landline | Rt Communications |
| 307-747 | Evanston | Uinta | Cell Phone | Union Telephone Company |
| 307-749 | Big Piney | Sublette | Cell Phone | Union Telephone Company |
| 307-750 | Sheridan | Sheridan | Landline | Range Telephone Cooperative... |
| 307-751 | Sheridan | Sheridan | Cell Phone | Western Wireless Corporatio... |
| 307-752 | Sheridan | Sheridan | Cell Phone | Cellco Partnership Dba Veri... |
| 307-754 | Powell | Park | Landline | Qwest Corporation |
| 307-755 | Laramie | Albany | Landline | Qwest Corporation |
| 307-756 | Moorcroft | Crook | Landline | Rt Communications |
| 307-758 | Clearmont | Sheridan | Landline | Range Telephone Cooperative... |
| 307-760 | Bosler | Albany | Cell Phone | Cellco Partnership Dba Veri... |
| 307-761 | Bosler | Albany | Cell Phone | Western Wireless Corporatio... |
| 307-762 | Burlington | Big Horn | Landline | Tri County Telephone Asso... |
| 307-763 | Sheridan | Sheridan | Cell Phone | Cellco Partnership Dba Veri... |
| 307-764 | Powell | Park | Landline | Tri Tel, Inc. |
| 307-765 | Greybull | Big Horn | Landline | Tct West, Inc. |
| 307-766 | Laramie | Albany | Landline | Qwest Corporation |
| 307-769 | Opa Locka | MiamiDade | Landline | Unknown |
| 307-771 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-772 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-773 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-774 | Thayne | Lincoln | Landline | Gold Star Communications, Llc |
| 307-775 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-777 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-778 | Cheyenne | Laramie | Landline | Qwest Corporation |
| 307-780 | Lyman | Uinta | Cell Phone | Union Telephone Company Dba... |
| 307-782 | Mountain View | Uinta | Cell Phone | Union Telephone Co. Wy |
| 307-783 | Evanston | Uinta | Landline | Qwest Corporation |
| 307-786 | Lyman | Uinta | Cell Phone | Union Telephone Co. Wy |
| 307-787 | Lyman | Uinta | Cell Phone | Union Telephone Co. Wy |
| 307-788 | Lyman | Scotts Bluff | Landline | United Tel Co West Wy Dba... |
| 307-789 | Evanston | Uinta | Landline | Qwest Corporation |
| 307-794 | Lanham | Prince Georges | Landline | Unknown |
| 307-797 | Casper | Natrona | Cell Phone | Western Wireless Corporatio... |
| 307-799 | Evanston | Uinta | Cell Phone | Union Telephone Company Dba... |
| 307-824 | Riverton | Fremont | Landline | Unknown |
| 307-828 | Kemmerer | Lincoln | Landline | Qwest Corporation |
| 307-829 | North Yarmouth | Cumberland | Landline | Unknown |
| 307-834 | Lagrange | Goshen | Landline | United Tel Co West Wy Dba... |
| 307-836 | Guernsey | Platte | Landline | United Tel Co West Wy Dba... |
| 307-837 | Lingle | Goshen | Landline | United Tel Co West Wy Dba... |
| 307-840 | Riverton | Fremont | Cell Phone | Cellco Partnership Dba Veri... |
| 307-849 | Montpelier | Bear Lake | Landline | Qwest Corporation |
| 307-850 | Riverton | Fremont | Cell Phone | Union Telephone Company Dba... |
| 307-851 | Riverton | Fremont | Cell Phone | Cellco Partnership Dba Veri... |
| 307-854 | Riverton | Fremont | Landline | Advanced Communications Tec... |
| 307-855 | Riverton | Fremont | Landline | Qwest Corporation |
| 307-856 | Riverton | Fremont | Landline | Qwest Corporation |
| 307-857 | Riverton | Fremont | Landline | Qwest Corporation |
| 307-859 | Daniel | Sublette | Landline | Centurytel Of Wyoming, Inc.... |
| 307-864 | Thermopolis | Hot Springs | Landline | Rt Communications |
| 307-867 | Thermopolis | Hot Springs | Landline | Tri County Telephone Asso... |
| 307-868 | Meeteetse | Park | Landline | Tct West, Inc. |
| 307-870 | Green River | Sweetwater | Cell Phone | Union Telephone Company Dba... |
| 307-871 | Rock Springs | Sweetwater | Cell Phone | Cellco Partnership Dba Veri... |
| 307-872 | Green River | Sweetwater | Landline | Qwest Corporation |
| 307-874 | Mc Kinnon | Sweetwater | Cell Phone | Union Telephone Co. Wy |
| 307-875 | Green River | Sweetwater | Landline | Qwest Corporation |
| 307-876 | Shoshoni | Fremont | Landline | Rt Communications |
| 307-877 | Kemmerer | Lincoln | Landline | Qwest Corporation |
| 307-878 | Hulett | Crook | Landline | Range Telephone Cooperative... |
| 307-880 | Rexburg | Madison | Landline | Gold Star Communications, Llc |
| 307-883 | Thayne | Lincoln | Landline | Silver Star Telephone Co.,... |
| 307-884 | Afton | Lincoln | Cell Phone | Union Telephone Company Dba... |
| 307-885 | Afton | Lincoln | Landline | Silver Star Telephone Co.,... |
| 307-886 | Afton | Lincoln | Landline | Qwest Corporation |
| 307-896 | Aladdin | Crook | Landline | Qwest Corporation |
| 307-899 | Cody | Park | Cell Phone | New Cingular Wireless Pcs, Llc |
| 307-920 | Cheyenne | Laramie | Cell Phone | Tmobile Usa, Inc. |
| 307-921 | Thermopolis | Hot Springs | Cell Phone | Cellco Partnership Dba Veri... |
| 307-922 | Rock Springs | Sweetwater | Landline | At&t Local |
| 307-931 | Beltsville | Prince Georges | Landline | Unknown |
| 307-939 | Gillette | Campbell | Landline | Qwest Corporation |
| 307-941 | Newcastle | Weston | Cell Phone | Cellco Partnership Dba Veri... |
| 307-967 | Casper | Natrona | Landline | Unknown |
| 307-972 | Riverton | Fremont | Landline | Unknown |
| 307-977 | Laramie | Albany | Cell Phone | Union Telephone Company |
| 307-995 | Casper | Natrona | Landline | Qwest Corporation |
| 307-996 | Cheyenne | Laramie | Landline | Qwest Corporation |