Area Code 720

720 is the North American Telephone Area Code For Colorado in United States.
District of Colorado area codes: 720
Country United States
State/Province Colorado
Major City Denver
Time Zone Mountain

Phone directory with area code 720

Prefix County Primary City Company
720-933 Jefferson Denver, CO T-mobile Usa
720-934 Jefferson Denver, CO T-mobile Usa
720-935 Jefferson Denver, CO T-mobile Usa
720-936 Jefferson Denver, CO T-mobile Usa
720-937 Jefferson Denver, CO T-mobile Usa
720-938 Jefferson Denver, CO T-mobile Usa
720-939 Jefferson Denver, CO T-mobile Usa
720-940 Denver Denver, CO Sprint Spectrum L.p.
720-941 Denver Denver, CO Qwest Corporation
720-942 Denver Denver, CO Qwest Corporation
720-943 Jefferson Denver, CO Global Crossing Local Services-co
720-944 Denver Denver, CO Qwest Corporation
720-945 Denver Denver, CO Qwest Corporation
720-946 Denver Denver, CO Qwest Corporation
720-947 Denver Denver, CO Qwest Corporation
720-949 Jefferson Aurora, CO AT&T Local
720-951 Arapahoe Aurora, CO Cellco Partnership DBA Verizon Wireless
720-956 Denver Denver, CO Qwest Corporation
720-961 Jefferson Denver, CO Level 3 Communications
720-962 Jefferson Denver, CO Qwest Corporation

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There are 519 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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