National Phone Number Registry NPNR

(307)
Enter 7-digit phone number for area code 307 or the complete 10-digit phone number

Phone Prefixes for Area Code 307

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Area code Location Company / Service Provider
307-200 JACKSON, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-201 JACKSON, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-202 POWELL, WY NEW CINGULAR WIRELESS PCS, LLC
307-203 JACKSON, WY SPRINT SPECTRUM L.P.
307-205 LINGLE, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-206 LANDER, WY MCIMETRO ACCESS TRANSMISSION SERVICES LLC
307-209 Rock Springs, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-212 Rock Springs, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-213 CODY, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-214 CHEYENNE, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-215 CASPER, WY AT&T LOCAL
307-216 LUSK, WY NEW CINGULAR WIRELESS PCS, LLC
307-217 BUFFALO, WY NEW CINGULAR WIRELESS PCS, LLC
307-219 POWELL, WY CENTURYLINK COMMUNICATIONS LLC
307-220 CHEYENNE, WY T-MOBILE USA, INC.
307-221 CHEYENNE, WY SPRINT SPECTRUM L.P.
307-222 CHEYENNE, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-223 LARAMIE, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-224 CASPER, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-226 AFTON, WY MCIMETRO ACCESS TRANSMISSION SERVICES LLC
307-227 MAMMOTH, WY CENTURYLINK COMMUNICATIONS LLC
307-228 GILLETTE, WY BANDWIDTH.COM CLEC, LLC - WY
307-229 COKEVILLE, WY GOLD STAR COMMUNICATIONS, LLC
307-230 CASPER, WY VERSATEL COMMUNICATIONS
307-231 PINEDALE, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-232 CASPER, WY QWEST CORPORATION
307-233 CASPER, WY QWEST CORPORATION
307-234 CASPER, WY QWEST CORPORATION
307-235 CASPER, WY QWEST CORPORATION
307-237 CASPER, WY QWEST CORPORATION
307-239 DUBOIS, WY GOLD STAR COMMUNICATIONS, LLC
307-240 RIVERTON, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-241 WHEATLAND, WY NEW CINGULAR WIRELESS PCS, LLC
307-242 LAKE, WY QWEST CORPORATION
307-245 PINEBLUFFS, WY RT COMMUNICATIONS
307-246 ALBIN, WY RT COMMUNICATIONS
307-247 CASPER, WY NEW CINGULAR WIRELESS PCS, LLC
307-248 AFTON, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-249 JACKSON, WY TELNYX LLC
307-250 CODY, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-251 CASPER, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-252 Rock Springs, WY UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS
307-253 CASPER, WY QWEST CORPORATION
307-254 POWELL, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-255 EVANSTON, WY UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS
307-256 CHEYENNE, WY SPRINT SPECTRUM L.P.
307-257 GILLETTE, WY LEVEL 3 COMMUNICATIONS, LLC - WY
307-258 CASPER, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-259 CASPER, WY CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
307-260 BIG PINEY, WY UNION TELEPHONE COMPANY
New numbers being added to 307 area code
Effective: 06/21/2017
307-317 in CHEYENNE, WY
NEUTRAL TANDEM-WYOMING, LLC - WY
307 Area Code Information
Type of code: General Purpose Code
Location: WY - US
Time zone: M
Assigned for use: Yes
Code in service: Yes
Service date: January 01, 1947
In jeopardy: No
Relief in progress: No
NPA Relief status:
Code assignable: Yes
Geographic or
non-geographic:
G
Reserved for future use: No
Planning letter(s):
Overlay code: No
Overlay complex:
Dialing plan Standard Permissive
Home local calls: 7D NA
Foreign local calls: 7D NA
Home toll calls: 1+10D NA
Foreign toll calls: 1+10D -

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