Area Code 307 - Casper, WY

Below is the information for Area Code 307
General Information for Area Code 307
Country United States
State/Province Wyoming
Major City Casper
Time Zone Mountain (UTC-07:00)

Phone directory of numbers beginning with Area Code 307 Prefixes

Prefix Primary City County Phone Type
307-233 Casper, WY Carbon Landline
307-234 Casper, WY Carbon Landline
307-235 Casper, WY Carbon Landline
307-237 Casper, WY Carbon Landline
307-240 Riverton, WY Fremont Cell Number
307-241 Wheatland, WY Platte Cell Number
307-242 Yellowstone National Park, WY Teton Landline
307-245 Pine Bluffs, WY Laramie Landline
307-246 Albin, WY Laramie Landline
307-247 Casper, WY Natrona Cell Number
307-248 Afton, WY Lincoln Cell Number
307-250 Cody, WY Park Cell Number
307-251 Casper, WY Natrona Cell Number
307-252 Rock Springs, WY Sweetwater Cell Number
307-253 Casper, WY Natrona Landline
307-254 Powell, WY Park Cell Number
307-255 Evanston, WY Uinta Cell Number
307-256 Cheyenne, WY Laramie Cell Number
307-257 Gillette, WY Campbell Landline
307-258 Casper, WY Natrona Cell Number
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Location Details

Area code is a type of numbering scheme used in telecommunication. It divides the territories of its member countries, the code is a three-digit code. The digits 0 and 1 applied for central office codes. Other digits were applied into geographic areas of the service territory.

  • 200: easily recognizable code (ERC)
  • 201: New Jersey
  • 202: Washington, D.C.
  • 203: Connecticut
  • and so on.

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