Area Code307

Wyoming, United States

Mountain Time

7:03 AM

Area Code

307

State / Province

Wyoming

Country

United States

Time Zone

Mountain Time

Cities and Communities Served

AftonAlbinAlpineAltaArvadaBaggsBasinBig PineyBorderBuffaloBurlingtonBurnsCarpenterCasperCheyenneChugwaterClarkClearmontCodyCokevilleCrowheartDanielDeckerDouglasDuboisEncampmentEvanstonFarsonFrannieFreedomGas HillsGilletteGlendoGlenrockGreen RiverGreybullGuernseyHamilton DomeHannaHulettHyattvilleJacksonJeffrey CityKayceeKemmererLa GrangeLabargeLakeLanderLaramieLeigh CanyonLingleLovellLuskLymanMammothManilaMedicine BowMeeteetseMidwestMoorcroftMoranMountain ViewNewcastleOld FaithfulPine BluffsPinedalePowellRawlinsRivertonRock RiverRock SpringsSaratogaSheridanShirley BasinShoshoniSouth AlzadaSouth WyolaSoutheast SheridanSundanceTen SleepThermopolisTorringtonUptonUrieWest Belle FourcheWest EdgemontWest LymanWest SpearfishWheatlandWorlandWright

Area code 307 covers 92 cities and communities across Wyoming, based on telephone company rate center data.

tel: Link Format

Use the E.164 format for clickable phone links (RFC 3966):

<a href="tel:+13075550100">+13075550100</a>
<a href="tel:+13075550199">+13075550199</a>
Full tel: URI guide
View all United States area codes on map →

Check a 307 Number

Look up which exchange in Wyoming a specific 307 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.

Prefix Blocks (NPA-NXX)

497 active prefixes in this area code, assigned as 2,784 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.

Showing blocks 1–100 of 2,784

NPA-NXXBlockRate centreTypeCarrier (OCN)SwitchLATALIRDates
307-2000JacksonLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2001JacksonWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2002JacksonLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)CHYNWYMAEMD654——
307-2003JacksonLandline or VoIPMCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229)CHYNWYMAZMD654——
307-2004JacksonLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)CHYNWYMAEMD654——
307-2005JacksonWirelessT-MOBILE USA, INC. (6529)CHYNWY07GMD654——
307-2006JacksonLandline or VoIPCHARTER IP ENABLED SERVICES, LLC (792K)CSPRWYES6MD654——
307-2007JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2008JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2009JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-200AJacksonLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)CHYNWYMAEMD654——
307-2010JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2011JacksonLandline or VoIPCHARTER IP ENABLED SERVICES, LLC (792K)CSPRWYES6MD654——
307-2012JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2013JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2014JacksonLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2015JacksonLandline or VoIPSILVER STAR TELEPHONE COMPANY, INC. - WY (110G)FREEDOM654——
307-2016JacksonLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)CHYNWYMAEMD654——
307-2017JacksonLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)CHYNWYMAEMD654——
307-2018JacksonLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2019JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-201AJacksonLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)CHYNWYMAEMD654——
307-2020PowellWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2021PowellWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2022PowellWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2023PowellWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2024PowellLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2025PowellLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2026PowellLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2027PowellLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2028PowellLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2029PowellLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-202APowellWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2030JacksonWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2031JacksonLandline or VoIPAIRUS, INC. - WY (581H)CHEYENNE654——
307-2032JacksonLandline or VoIPCHARTER IP ENABLED SERVICES, LLC (792K)CSPRWYES6MD654——
307-2033JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2034JacksonLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2035JacksonWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2036JacksonWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2037JacksonWirelessNEW CINGULAR WIRELESS PCS, LLC (6010)CSPRWYMAXMD654——
307-2038JacksonWirelessT-MOBILE USA, INC. (6529)CHYNWY07GMD654——
307-2039JacksonWirelessT-MOBILE USA, INC. (6529)CHYNWY07GMD654——
307-203AJacksonWirelessT-MOBILE USA, INC. (6529)CHYNWY07GMD654——
307-2040CodyLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2041CodyLandline or VoIPAIRUS, INC. - WY (581H)CHEYENNE654——
307-2042CodyLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2043CodyLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2044CodyLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2045CodyLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2046CodyLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2047CodyLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2048CodyLandline or VoIPAIRUS, INC. - WY (581H)CHEYENNE654——
307-2049CodyLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-204ACodyLandline or VoIPAIRUS, INC. - WY (581H)CHEYENNE654——
307-2050LingleLandline or VoIPONVOY, LLC - WY (450F)SCTSNEXUMMD646——
307-2051LingleLandline or VoIPONVOY, LLC - WY (450F)SCTSNEXUMMD646——
307-2052LingleLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)GDISNENW6MD646——
307-2053LingleWirelessT-MOBILE USA, INC. (6529)GDISNENWX2X646——
307-2054LingleWirelessT-MOBILE USA, INC. (6529)GDISNENWX2X646——
307-2055LingleLandline or VoIPONVOY, LLC - WY (450F)SCTSNEXUMMD646——
307-2056LingleLandline or VoIPONVOY, LLC - WY (450F)SCTSNEXUMMD646——
307-2057LingleLandline or VoIPONVOY, LLC - WY (450F)SCTSNEXUMMD646——
307-2058LingleLandline or VoIPONVOY, LLC - WY (450F)SCTSNEXUMMD646——
307-2059LingleLandline or VoIPONVOY, LLC - WY (450F)SCTSNEXUMMD646——
307-205ALingleLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)GDISNENW6MD646——
307-2060LanderLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2061LanderLandline or VoIPCHARTER IP ENABLED SERVICES, LLC (792K)CSPRWYES6MD654——
307-2062LanderLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2063LanderLandline or VoIPMCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229)CHYNWYMAZMD654——
307-2064LanderLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2065LanderLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2066LanderWirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (6566)CHYNWYMAXIX654——
307-2067LanderLandline or VoIPCENTURYLINK COMMUNICATIONS, LLC (508J)CHYNWYMAXAX654——
307-2068LanderLandline or VoIPTELNYX LLC (073H)CHYNWYRF1MD654——
307-2069LanderLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-206ALanderLandline or VoIPMCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229)CHYNWYMAZMD654——
307-2070LakeLandline or VoIPTELNYX LLC (073H)BLNGMT933MD650——
307-2071LakeLandline or VoIPAIRUS, INC. - WY (581H)BILLINGS650——
307-2072LakeLandline or VoIPONVOY, LLC - WY (450F)BLNGMTAS9MD650——
307-2073LakeLandline or VoIPONVOY, LLC - WY (450F)BLNGMTAS9MD650——
307-2074LakeLandline or VoIPONVOY, LLC - WY (450F)BLNGMTAS9MD650——
307-2075LakeLandline or VoIPONVOY, LLC - WY (450F)BLNGMTAS9MD650——
307-2076LakeLandline or VoIPONVOY, LLC - WY (450F)BLNGMTAS9MD650——
307-2077LakeLandline or VoIPONVOY, LLC - WY (450F)BLNGMTAS9MD650——
307-2078LakeLandline or VoIPTELNYX LLC (073H)BLNGMT933MD650——
307-2079LakeLandline or VoIPAIRUS, INC. - WY (581H)BILLINGS650——
307-207ALakeLandline or VoIPAIRUS, INC. - WY (581H)BILLINGS650——
307-2090Rock SpringsWirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (6566)CHYNWYMAXIX654——
307-2091Rock SpringsWirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (6566)CHYNWYMAXIX654——
307-2092Rock SpringsLandline or VoIPLEVEL 3 COMMUNICATIONS, LLC - WY (9416)CHYNWYMAEMD654——
307-2093Rock SpringsLandline or VoIPONVOY, LLC - WY (450F)CHYNWYMAX2X654——
307-2094Rock SpringsLandline or VoIPBANDWIDTH.COM CLEC, LLC - WY (081F)CHYNWYMAQMD654——
307-2095Rock SpringsLandline or VoIPTELNYX LLC (073H)CHYNWYRF1MD654——
307-2096Rock SpringsLandlineQWEST CORPORATION (9636)ROCK SPRINGS654——
307-2097Rock SpringsLandline or VoIPCENTURYLINK COMMUNICATIONS, LLC (508J)CHYNWYMAXAX654——
307-2098Rock SpringsWirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (6566)CHYNWYMAXIX654——
307-2099Rock SpringsLandline or VoIPAIRUS, INC. - WY (581H)CHEYENNE654——
307-209ARock SpringsWirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (6566)CHYNWYMAXIX654——
307-2100Southeast SheridanLandline or VoIPTERRA NOVA TELECOM INC. (145J)—654——

Search and page through all 2,784 blocks →

Area Code 307 Numbering Data

Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.

Assigned Prefixes

497

Assignment Blocks

2,784

Rate Centers

92

Carriers of Record

54

Line Types

TypeBlocksShare
Landline42815%
Landline or VoIP1,39250%
Wireless96435%

Carriers of Record

CarrierBlocks
ONVOY, LLC - WY610
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY359
NEW CINGULAR WIRELESS PCS, LLC307
QWEST CORPORATION257
BANDWIDTH.COM CLEC, LLC - WY186
T-MOBILE USA, INC.164
LEVEL 3 COMMUNICATIONS, LLC - WY155
UNION TELEPHONE COMPANY65
CHARTER IP ENABLED SERVICES, LLC63
ONVOY SPECTRUM, LLC55
44 other carriers563

Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.

Prefixes by Rate Center

Rate CenterPrefixesBlocks
Cheyenne60397
Casper40250
Gillette21110
Jackson21124
Laramie18102
Rock Springs1799
Sheridan17119
Cody15111
Evanston1358
Riverton1389
Lander1161
Green River1049
Powell1075
Buffalo963
Douglas977
Rawlins951
Afton856
Wheatland851
Pinedale738
Torrington752
Kemmerer642
Lusk646
Newcastle628
Sundance516
Worland525
Big Piney426
Border424
Cokeville47
Freedom46
Glenrock424
Hanna46
La Grange440
Lake428
Moran425
Mountain View46
Old Faithful426
Thermopolis416
West Spearfish426
Baggs35
Dubois35
Farson319
Jeffrey City35
Labarge35
Lingle328
Mammoth327
Medicine Bow317
Saratoga37
Shoshoni35
West Belle Fourche314
Wright333
Alpine22
Basin26
Burns24
Daniel222
Glendo221
Greybull25
Guernsey222
Hamilton Dome23
Lovell22
Lyman25
Midwest24
Moorcroft217
Rock River22
Shirley Basin24
Southeast Sheridan28
Upton23
Albin11
Alta11
Arvada11
Burlington11
Carpenter11
Chugwater11
Clark11
Clearmont11
Crowheart11
Decker11
Encampment11
Frannie11
Gas Hills11
Hulett11
Hyattville11
Kaycee11
Leigh Canyon11
Manila11
Meeteetse11
Pine Bluffs11
South Alzada11
South Wyola11
Ten Sleep11
Urie11
West Edgemont11
West Lyman110

A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.

LATAs
640, 646, 650, 652, 654
Incumbent Carriers
ALL WEST COMMUNICATIONS - WY, CENTURYTEL OF WYOMING, INC. DBA CENTURYLINK, CHUGWATER TEL. CO., COLUMBINE TELCO DBA SILVER STAR COMMUNICATIONS, DUBOIS TEL. EXCH., INC., GOLDEN WEST TEL COOP INC DBA GOLDEN WEST TELECOMM

About Area Code 307

Area code 307 is a North American Numbering Plan (NANP) telephone area code assigned to Wyoming, United States. It is the sole area code assigned to Wyoming, covering the entire state or province under a single numbering plan area.

Is 307 a valid area code?

Yes. 307 is an active North American Numbering Plan (NANP) area code, currently assigned to Wyoming, United States. It is safe to answer or dial calls using this area code.

Where is area code 307?

Area code 307 covers 92 cities and communities in Wyoming, including Afton, Albin, Alpine, Alta, Arvada, and 87 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.

What time zone is area code 307?

All numbers in the 307 area code observe Mountain Time (IANA timezone: America/Denver). Mountain Time is UTC−7 in winter (MST) and UTC−6 in summer (MDT). When placing a call to a 307 number from a different time zone, check the current local time above to avoid calling outside of business hours.

How do I dial a 307 number?

From within Wyoming, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 307 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 307 XXX XXXX. The country code for both the United States and Canada in NANP is +1.

Formatting 307 phone numbers

Format 307 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +13075550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.