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United States > U.S. Cities > Area Codes: United States, Canada, Caribbean

Colorado Area Codes

Area codes Selected cities
303, 720Denver, Boulder
719Colorado Springs, Pueblo
970Aspen, Fort Collins
Source: North American Numbering Plan Administration. Web: www.nanpa.com .

To find phone numbers, area code information, and area code maps, see our White Pages.


Information Please® Database, © 2007 Pearson Education, Inc. All rights reserved.

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Colorado Area Codes


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