United States, Denver Area Codes

Number structure

+1303
720
256
282
29
300
307
308
...
United StatesColoradoDenverNumber

List of area codes

303-256
303-282
303-29
303-300
303-307
303-308
303-315
303-316
303-318
303-320
303-321
303-322
303-329
303-331
303-333
303-342
303-355
303-37
303-388
303-393
303-394
303-398
303-399
303-433
303-436
303-446
303-455
303-458
303-477
303-480
303-493
303-504
303-534
303-571
303-572
303-573
303-574
303-576
303-584
303-592
303-595
303-607
303-623
303-626
303-628
303-629
303-639
303-691
303-692
303-698
303-715
303-722
303-733
303-744
303-753
303-756
303-757
303-758
303-759
303-764
303-765
303-777
303-778
303-780
303-782
303-825
303-830
303-831
303-832
303-837
303-839
303-860
303-861
303-863
303-866
303-869
303-871
303-892
303-893
303-894
303-922
303-934
303-935
303-936
303-937
303-975
720-424
720-570
720-855
720-865
720-904
720-913
720-932
720-941

Local time in Denver

TimezoneGMTTime
America/Denver-06:00
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Map of Denver

Other area codes in Colorado

Area Codes Search Notes

Fixed phone numbers in the United States, state Colorado, Denver are comprised of a single country code (+1), a 3 digit area code, a 3 digit local office code (or region code), and a 4 digit line code. Making a call with the wrong country, area, or region code can be costly. Browse our sites area and region codes by state and city to ensure you have the correct information for your calls. Each states page contains a list of the cities within that state and the numbers of that area. Also available are local times. So you don’t have to worry about calling too late or early again.

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