Area Code 303 Details

State : Colorado
Major City : Denver
Timezone : Mountain

303 is the North American telephone area code for the state of Colorado, including the cities of Arvada, Aurora, Boulder, Brighton, Broomfield, Castle Rock, Castlewood, Columbine, Commerce City, Denver, Englewood, Highlands Ranch, Ken Caryl, Lafayette, Lakewood, Littleton, Longmont, Loveland, Northglenn, Parker, Southglenn, Thornton, Westminster, and Wheat Ridge.

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Prefix Primary City Company County Usage
303-200-#### Denver, CO Teleport Communications Group Arapahoe Landline
303-201-#### Denver, CO Usa Mobility Wireless Jefferson Cell Number
303-202-#### Denver, CO Qwest Corporation Jefferson Landline
303-203-#### Denver, CO American Messaging (am) Jefferson Cell Number
303-204-#### Denver, CO Cellco Partnership DBA Verizon Wireless Jefferson Cell Number
303-205-#### Denver, CO Qwest Corporation Jefferson Landline
303-206-#### Denver, CO Usa Mobility Wireless Jefferson Cell Number
303-207-#### Denver, CO Usa Mobility Wireless Jefferson Cell Number
303-208-#### Denver, CO Usa Mobility Wireless Jefferson Cell Number
303-209-#### Denver, CO Mcimetro Access Transmission Services LLC Denver Landline
303-210-#### Denver, CO Nextel Communications Jefferson Cell Number
303-212-#### Denver, CO Contact Paging Of Colorado Jefferson Cell Number
303-213-#### Denver, CO Usa Mobility Wireless Jefferson Cell Number
303-214-#### Aurora, CO Mcimetro Access Transmission Services LLC Denver Landline
303-215-#### Golden, CO Qwest Corporation Jefferson Landline
303-216-#### Golden, CO Qwest Corporation Jefferson Landline
303-217-#### Denver, CO Mcimetro Access Transmission Services LLC Denver Landline
303-218-#### Denver, CO Mcimetro Access Transmission Services LLC Denver Landline
303-219-#### Brighton, CO Mcimetro Access Transmission Services LLC Adams Landline
303-220-#### Denver, CO Qwest Corporation Denver Landline
303-221-#### Denver, CO Qwest Corporation Denver Landline
303-222-#### Denver, CO Mcimetro Access Transmission Services LLC Denver Landline
303-223-#### Denver, CO Global Crossing Local Services-co Jefferson Landline
303-224-#### Denver, CO Qwest Corporation Denver Landline
303-225-#### Denver, CO Global Crossing Local Services-co Jefferson Landline
303-226-#### Denver, CO Icg Telecom Group Denver Landline
303-227-#### Denver, CO Qwest Corporation Denver Landline
303-228-#### Denver, CO Icg Telecom Group Denver Landline
303-229-#### Denver, CO Cellco Partnership DBA Verizon Wireless Jefferson Cell Number
303-230-#### Denver, CO Usa Mobility Wireless Jefferson Cell Number
303-231-#### Denver, CO Qwest Corporation Jefferson Landline
303-232-#### Denver, CO Qwest Corporation Jefferson Landline
303-233-#### Denver, CO Qwest Corporation Jefferson Landline
303-234-#### Denver, CO Qwest Corporation Jefferson Landline
303-235-#### Denver, CO Qwest Corporation Jefferson Landline
303-236-#### Denver, CO Qwest Corporation Jefferson Landline
303-237-#### Denver, CO Qwest Corporation Jefferson Landline
303-238-#### Denver, CO Qwest Corporation Jefferson Landline
303-239-#### Denver, CO Qwest Corporation Jefferson Landline
303-240-#### Denver, CO Usa Mobility Wireless Jefferson Cell Number
303-241-#### Denver, CO Cellco Partnership DBA Verizon Wireless Jefferson Cell Number
303-242-#### Denver, CO Mcimetro Access Transmission Services LLC Denver Landline
303-243-#### Denver, CO N.e. Colorado Cellular Jefferson Cell Number
303-244-#### Denver, CO Qwest Corporation Denver Landline
303-245-#### Denver, CO Qwest Corporation Jefferson Landline
303-246-#### Denver, CO Sprint Spectrum L.p. Denver Cell Number
303-247-#### Denver, CO Qwest Corporation Jefferson Landline
303-248-#### Denver, CO Teleport Communications Group Arapahoe Landline
303-249-#### Denver, CO New Cingular Wireless PCS Jefferson Cell Number
303-250-#### Denver, CO New Cingular Wireless PCS Jefferson Cell Number
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