Area Code 303 - Denver, CO

Below is the information for Area Code 303
General Information for Area Code 303
Country United States
State/Province Colorado
Major City Denver
Time Zone Mountain (UTC-07:00)

Phone directory of numbers beginning with Area Code 303 Prefixes

Prefix Primary City County Phone Type
303-383 Denver, CO Denver Landline
303-384 Golden, CO Jefferson Landline
303-385 Denver, CO Denver Landline
303-386 Denver, CO Denver Landline
303-387 Denver, CO Denver Landline
303-388 Denver, CO Denver Landline
303-389 Denver, CO Denver Landline
303-390 Denver, CO Denver Landline
303-391 Denver, CO Denver Landline
303-392 Denver, CO Jefferson Cell Number
303-393 Denver, CO Denver Landline
303-394 Denver, CO Denver Landline
303-395 Denver, CO Jefferson Landline
303-396 Denver, CO Jefferson Landline
303-397 Denver, CO Jefferson Landline
303-398 Denver, CO Denver Landline
303-399 Denver, CO Denver Landline
303-400 Denver, CO Jefferson Landline
303-401 Denver, CO Jefferson Landline
303-402 Denver, CO Jefferson Landline
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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.

If you want to get more informatons of the areacode, Input an areacode into the above search area, get what you want.