307 Area Code
The 307 area code is a telephone area code serving the entire U.S. state of Wyoming.
Federal Data
State Data
County Data
City Data
The 307 area code is a telephone area code serving the entire U.S. state of Wyoming.
Federal Data
State Data
County Data
City Data
The 307 area code serves the entire U.S. state of Wyoming. The numbering plan includes numerous communities across the state.
Area code 307 is a general purpose code which was placed in service on January 1, 1947.
Our Wyoming phone number lookup service will analyze the three-digit prefix of any 307 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Wyoming geographic region, and local calling area associated with the phone number.
Phone numbers follow the following structure under the North American Numbering Plan:
Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.
| Company | Number of Prefixes |
|---|---|
| QWEST CORPORATION | 79 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 48 |
| UNION TELEPHONE COMPANY | 21 |
| NEW CINGULAR WIRELESS PCS, LLC | 19 |
| LEVEL 3 COMMUNICATIONS, LLC - WY | 15 |
| RT COMMUNICATIONS | 15 |
| UNION TEL. CO. | 10 |
| TRI-COUNTY TEL. ASSN., INC. | 8 |
| BRESNAN BROADBAND OF WYOMING, LLC - WY [CHARTER] | 6 |
| UNITED TEL CO WEST - WY DBA CENTURYLINK WEST - WY | 5 |
| BANDWIDTH.COM CLEC, LLC - WY | 4 |
| CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK | 4 |
| DUBOIS TEL. EXCH., INC. | 3 |
| ONVOY, LLC - WY | 3 |
| RANGE TEL COOP INC | 3 |
| SILVER STAR TEL CO INC | 3 |
| T-MOBILE USA, INC. | 3 |
| AT&T - LOCAL | 2 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2 |
| TRI TEL, INC. | 2 |
| ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY | 1 |
| ALL WEST COMMUNICATIONS - WY | 1 |
| ALL WEST/WYOMING, INC. | 1 |
| CENTURYLINK COMMUNICATIONS, LLC | 1 |
| CHUGWATER TEL. CO. | 1 |
| COLUMBINE TELCO DBA SILVER STAR COMMUNICATIONS | 1 |
| GOLD STAR COMMUNICATIONS, LLC | 1 |
| METROPCS, INC. | 1 |
| PROJECT TEL. CO., INC. | 1 |
| TELEPORT COMMUNICATIONS AMERICA WY-LLC | 1 |
| VONAGE AMERICA LLC | 1 |
Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.
| Rate Center | Number of Prefixes |
|---|---|
| CHEYENNE | 35 |
| CASPER | 34 |
| GILLETTE | 17 |
| LARAMIE | 11 |
| ROCK SPG | 11 |
| SHERIDAN | 11 |
| JACKSON | 10 |
| CODY | 8 |
| EVANSTON | 7 |
| RAWLINS | 7 |
| RIVERTON | 7 |
| GREENRIVER | 5 |
| LANDER | 5 |
| AFTON | 4 |
| BUFFALO | 4 |
| PINEDALE | 4 |
| POWELL | 4 |
| TORRINGTON | 4 |
| DOUGLAS | 3 |
| KEMMERER | 3 |
| MT VIEW | 3 |
| NEWCASTLE | 3 |
| WHEATLAND | 3 |
| WORLAND | 3 |
| FREEDOM | 2 |
| GLENROCK | 2 |
| GREYBULL | 2 |
| HANNA | 2 |
| LUSK | 2 |
| WRIGHT | 2 |
| ALBIN | 1 |
| ALPINE | 1 |
| ALTA | 1 |
| ARVADA | 1 |
| BAGGS | 1 |
| BASIN | 1 |
| BIG PINEY | 1 |
| BURLINGTON | 1 |
| BURNS | 1 |
| CARPENTER | 1 |
| CHUGWATER | 1 |
| CLARK | 1 |
| CLEARMONT | 1 |
| COKEVILLE | 1 |
| CROWHEART | 1 |
| DUBOIS | 1 |
| ENCAMPMENT | 1 |
| FARSON | 1 |
| FRANNIE | 1 |
| GLENDO | 1 |
| GUERNSEY | 1 |
| HULETT | 1 |
| HYATTVILLE | 1 |
| JEFFREY CY | 1 |
| KAYCEE | 1 |
| LA GRANGE | 1 |
| LABARGE | 1 |
| LINGLE | 1 |
| LOVELL | 1 |
| LYMAN | 1 |
| MAMMOTH | 1 |
| MANILA | 1 |
| MEDICINBOW | 1 |
| MEETEETSE | 1 |
| MIDWEST | 1 |
| MOORCROFT | 1 |
| MORAN | 1 |
| OLDFATHFUL | 1 |
| PINEBLUFFS | 1 |
| ROCK RIVER | 1 |
| SARATOGA | 1 |
| SHOSHONI | 1 |
| SUNDANCE | 1 |
| TEN SLEEP | 1 |
| THERMOPOLS | 1 |
| UPTON | 1 |
| URIE | 1 |
| WBLLFOURCH | 1 |