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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
303-977 Jefferson Denver, CO Qwest Corporation
303-978 Jefferson Denver, CO Qwest Corporation
303-979 Jefferson Denver, CO Qwest Corporation
303-980 Jefferson Denver, CO Qwest Corporation
303-981 Jefferson Denver, CO Cellco Partnership DBA Verizon Wireless
303-982 Jefferson Golden, CO Qwest Corporation
303-984 Jefferson Denver, CO Qwest Corporation
303-985 Jefferson Denver, CO Qwest Corporation
303-986 Jefferson Denver, CO Qwest Corporation
303-987 Jefferson Denver, CO Qwest Corporation
303-988 Jefferson Denver, CO Qwest Corporation
303-989 Jefferson Denver, CO Qwest Corporation
303-990 Weld Fort Lupton, CO Sprint Spectrum L.p.
303-991 Jefferson Denver, CO Xo Colorado
303-992 Denver Denver, CO Qwest Corporation
303-993 Denver Denver, CO Neutral Tandem-colorado
303-994 Jefferson Denver, CO Sprint Spectrum L.p.
303-995 Jefferson Denver, CO Sprint Spectrum L.p.
303-996 Jefferson Denver, CO Eschelon Telecom Of Colorado
303-997 Jefferson Denver, CO Pac - West Telecomm
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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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