Area Code 303

303 is the North American Telephone Area Code For Colorado in United States.
District of Colorado area codes: 303
Country United States
State/Province Colorado
Major City Denver
Time Zone Mountain (UTC-07:00)

Phone directory with area code 303

Prefix County Primary City Company
303-200 Arapahoe Denver, CO Teleport Communications America
303-201 Jefferson Denver, CO Usa Mobility Wireless
303-202 Jefferson Denver, CO Qwest Corporation
303-203 Jefferson Denver, CO American Messaging (am)
303-204 Jefferson Denver, CO Cellco Partnership DBA Verizon Wireless
303-205 Jefferson Denver, CO Qwest Corporation
303-206 Jefferson Denver, CO Usa Mobility Wireless
303-207 Jefferson Denver, CO Usa Mobility Wireless
303-208 Jefferson Denver, CO Usa Mobility Wireless
303-209 Denver Denver, CO Mcimetro Access Transmission Services LLC
303-210 Jefferson Denver, CO Sprint Spectrum L.p.
303-212 Jefferson Denver, CO Contact Paging Of Colorado
303-213 Jefferson Denver, CO Usa Mobility Wireless
303-214 Denver Aurora, CO Mcimetro Access Transmission Services LLC
303-215 Jefferson Golden, CO Qwest Corporation
303-216 Jefferson Golden, CO Qwest Corporation
303-217 Denver Denver, CO Mcimetro Access Transmission Services LLC
303-218 Denver Denver, CO Mcimetro Access Transmission Services LLC
303-219 Adams Brighton, CO Mcimetro Access Transmission Services LLC
303-220 Denver Denver, CO Qwest Corporation
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There are 783 prefixes, In the code area, the major cities are Arvada, CO;Aurora, CO;Boulder, CO;Brighton, CO;Bro. The major city is Denver.

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