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Information about Area Code 720
The map to the right is clickable; click on an area code to go to the page for that code.
Area codes 303 and 720 are telephone area codes serving the state of Colorado . They cover Boulder , Longmont , Aurora , Denver and other areas in central Colorado. Area code 303 is overlayed with Area code 720, meaning that the same physical service area is served by both area codes (303 and 720) and that 10-digit dialing is required for all calls made within the service area.
Originally, all of Colorado was served by the 303 area code but as the population grew, an impending phone number shortage forced a split of the state's area codes (now into three calling areas: 303/720, 719 and 970). The area currently served by 303/720 was originally served by only the 303 area code after the Colorado area code splits. With one exception (the Roggen area, which has local calling only with itself, Brighton , and Wiggins [1] ), the entire 303/720 area is a local calling zone, so long distance is not applied to any calls made from one phone to another within the area.
See also
Exchanges for Area Code 720-xxx-xxxx:
Centennial - QWEST CORPORATION
Denver - AT&T WIRELESS SERVICES, INC.
Centennial - SPRINT SPECTRUM L.P.
Denver - AT&T LOCAL
Centennial - SPRINT SPECTRUM L.P.
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Centennial - SPRINT SPECTRUM L.P.
Englewood - XO COLORADO, LLC
-
Englewood - XO COLORADO, LLC
Denver - MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO
Denver - MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Denver - T-MOBILE USA, INC.
Centennial - SPRINT SPECTRUM L.P.
Englewood - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
Denver - T-MOBILE USA, INC.
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Denver - T-MOBILE USA, INC.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
- TALKINGNETS HOLDINGS, LLC-CO
Denver - AT&T LOCAL
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Denver - AT&T WIRELESS SERVICES, INC.
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Englewood - SBC TELECOM, INC. - CO
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Denver - LEVEL 3 COMMUNICATIONS, LLC - CO
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Englewood - XO COLORADO, LLC
Denver - TELEPORT COMMUNICATIONS GROUP - CO
Denver - LEVEL 3 COMMUNICATIONS, LLC - CO
Centennial - SPRINT SPECTRUM L.P.
Denver - T-MOBILE USA, INC.
Denver - ICG TELECOM GROUP - CO
Denver - LEVEL 3 COMMUNICATIONS, LLC - CO
Denver - QWEST CORPORATION
Englewood - XO COLORADO, LLC
Denver - LEVEL 3 COMMUNICATIONS, LLC - CO
Englewood - QWEST CORPORATION
Englewood - QWEST CORPORATION
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Denver - AT&T WIRELESS SERVICES, INC.
Denver - AT&T WIRELESS SERVICES, INC.
Denver - MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - ICG TELECOM GROUP - CO
Aurora - TIME WARNER TELECOM OF COLORADO LLC-CO
Aurora - TIME WARNER TELECOM OF COLORADO LLC-CO
Denver - T-MOBILE USA, INC.
Westminster - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
Aurora - TIME WARNER TELECOM OF COLORADO LLC-CO
Littleton - QWEST CORPORATION
Englewood - XO COLORADO, LLC
Denver - TELEPORT COMMUNICATIONS GROUP - CO
Denver - AT&T WIRELESS SERVICES, INC.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - T-MOBILE USA, INC.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
TABLE MESA - QWEST CORPORATION
Aurora - TIME WARNER TELECOM OF COLORADO LLC-CO
Denver - ESCHELON TELECOM OF COLORADO, INC. - CO
Denver - AT&T WIRELESS SERVICES, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
-
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Denver - AT&T WIRELESS SERVICES, INC.
Denver - QWEST CORPORATION
Denver - T-MOBILE USA, INC.
Englewood - SBC TELECOM, INC. - CO
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Greenwood Village - ICG TELECOM GROUP - CO
Centennial - SPRINT SPECTRUM L.P.
Englewood - QWEST CORPORATION
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Centennial - SPRINT SPECTRUM L.P.
Denver - T-MOBILE USA, INC.
Denver - ICG TELECOM GROUP - CO
Littleton - QWEST CORPORATION
Denver - WINSTAR COMMUNICATIONS, LLC - CO
Littleton - QWEST CORPORATION
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
- T-MOBILE USA, INC.
Centennial - SPRINT SPECTRUM L.P.
Denver - AT&T LOCAL
Denver - QWEST CORPORATION
Denver -
Centennial - SPRINT SPECTRUM L.P.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
- XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Denver - QWEST CORPORATION
-
Englewood - ALLEGIANCE TELECOM OF COLORADO, INC.
Denver - ICG TELECOM GROUP - CO
- COMCAST PHONE OF COLORADO, LLC - CO
Denver - ESCHELON TELECOM OF COLORADO, INC. - CO
Englewood - XO COLORADO, LLC
- XO COLORADO, LLC
Denver - T-MOBILE USA, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Boulder - QWEST CORPORATION
Englewood - SBC TELECOM, INC. - CO
-
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - QWEST CORPORATION
Denver - QWEST CORPORATION
Denver - T-MOBILE USA, INC.
- LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver -
Centennial - QWEST CORPORATION
Englewood - ALLEGIANCE TELECOM OF COLORADO, INC.
Denver - LEVEL 3 COMMUNICATIONS, LLC - CO
Westminster - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Denver - TELEPORT COMMUNICATIONS GROUP - CO
Denver - AT&T WIRELESS SERVICES, INC.
Centennial - QWEST CORPORATION
Centennial - QWEST CORPORATION
Centennial - QWEST CORPORATION
Centennial - NEXTEL COMMUNICATIONS
Centennial - QWEST CORPORATION
Longmont - QWEST CORPORATION
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEVEL 3 COMMUNICATIONS, LLC - CO
Golden - QWEST CORPORATION
Denver - LEVEL 3 COMMUNICATIONS, LLC - CO
-
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Denver - AIRTOUCH PAGING - COLORADO
Denver - QWEST CORPORATION
Centennial - QWEST CORPORATION
Centennial - QWEST CORPORATION
Denver - AT&T WIRELESS SERVICES, INC.
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Centennial - QWEST CORPORATION
Westminster - QWEST CORPORATION
Westminster - QWEST CORPORATION
Lakewood - QWEST CORPORATION
DENVER - GLOBAL CROSSING LOCAL SERVICES, INC.-CO
Denver - WINSTAR COMMUNICATIONS, LLC - CO
Centennial - QWEST CORPORATION
Denver - QWEST CORPORATION
Broomfield - QWEST CORPORATION
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Denver - AT&T WIRELESS SERVICES, INC.
Boulder - QWEST CORPORATION
Boulder - QWEST CORPORATION
Boulder - QWEST CORPORATION
Boulder - QWEST CORPORATION
Broomfield - QWEST CORPORATION
Broomfield - QWEST CORPORATION
Englewood - QWEST CORPORATION
Denver - QWEST CORPORATION
Denver - QWEST CORPORATION
Englewood - ALLEGIANCE TELECOM OF COLORADO, INC.
Centennial - SPRINT SPECTRUM L.P.
Denver - AT&T LOCAL
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
-
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Boulder - QWEST CORPORATION
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
Denver - AT&T WIRELESS SERVICES, INC.
Centennial - NEXTEL COMMUNICATIONS
Longmont - QWEST CORPORATION
Westminster - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
Denver - ICG TELECOM GROUP - CO
Brighton - QWEST CORPORATION
Denver - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
-
-
-
Centennial - SPRINT SPECTRUM L.P.
CASTLE ROCK - QWEST CORPORATION
Denver - QWEST CORPORATION
Golden - QWEST CORPORATION
Denver - QWEST CORPORATION
Denver - QWEST CORPORATION
- T-MOBILE USA, INC.
Aurora -
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Westminster - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
-
Englewood - QWEST CORPORATION
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Denver - ICG TELECOM GROUP - CO
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
PARKER - QWEST CORPORATION
Aurora - QWEST CORPORATION
Aurora - QWEST CORPORATION
Centennial - SPRINT SPECTRUM L.P.
PARKER - QWEST CORPORATION
Englewood - QWEST CORPORATION
- QWEST CORPORATION
Denver - QWEST CORPORATION
Aurora - QWEST CORPORATION
Aurora - QWEST CORPORATION
Aurora - QWEST CORPORATION
Englewood - XO COLORADO, LLC
Englewood - XO COLORADO, LLC
Longmont - QWEST CORPORATION
Denver - ICG TELECOM GROUP - CO
DENVER - GREAT WEST SERVICES, LTD. - CO
Aurora - QWEST CORPORATION
NORTHGLENN - QWEST CORPORATION
Englewood - QWEST CORPORATION
Englewood - QWEST CORPORATION
Englewood - QWEST CORPORATION
Aurora - QWEST CORPORATION
Denver - ICG TELECOM GROUP - CO
Denver - ICG TELECOM GROUP - CO
Denver - ICG TELECOM GROUP - CO
Denver - ICG TELECOM GROUP - CO
Denver - ICG TELECOM GROUP - CO
Denver - ICG TELECOM GROUP - CO
Denver - ICG TELECOM GROUP - CO
Denver - QWEST CORPORATION
Aurora - QWEST CORPORATION
Broomfield - QWEST CORPORATION
Broomfield - QWEST CORPORATION
Englewood - ALLEGIANCE TELECOM OF COLORADO, INC.
LOUISVILLE - QWEST CORPORATION
Denver - LEVEL 3 COMMUNICATIONS, LLC - CO
Englewood - QWEST CORPORATION
DENVER - GLOBAL CROSSING LOCAL SERVICES, INC.-CO
Arvada - QWEST CORPORATION
DENVER - GLOBAL CROSSING LOCAL SERVICES, INC.-CO
Denver - QWEST CORPORATION
DENVER - GLOBAL CROSSING LOCAL SERVICES, INC.-CO
-
Denver - ICG TELECOM GROUP - CO
Denver - QWEST CORPORATION
Aurora - TELEPORT COMMUNICATIONS GROUP - CO
Denver - ICG TELECOM GROUP - CO
GIBSONIA - PENN TELECOM, INC.
BAILEY - QWEST CORPORATION
NORTHGLENN - QWEST CORPORATION
Denver - QWEST CORPORATION
Denver - QWEST CORPORATION
Denver - T-MOBILE USA, INC.
Denver - T-MOBILE USA, INC.
Denver - T-MOBILE USA, INC.
Denver - T-MOBILE USA, INC.
Denver - T-MOBILE USA, INC.
- T-MOBILE USA, INC.
Denver - T-MOBILE USA, INC.
Centennial - SPRINT SPECTRUM L.P.
Denver - QWEST CORPORATION
Denver - QWEST CORPORATION
DENVER - GLOBAL CROSSING LOCAL SERVICES, INC.-CO
Denver - QWEST CORPORATION
Denver - QWEST CORPORATION
Denver - QWEST CORPORATION
Denver - QWEST CORPORATION
Denver - AT&T LOCAL
-
Westminster - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
Denver - QWEST CORPORATION
-
-
DENVER - GLOBAL CROSSING LOCAL SERVICES, INC.-CO
Lakewood - QWEST CORPORATION
Lakewood - QWEST CORPORATION
Centennial - SPRINT SPECTRUM L.P.
NORTHGLENN - QWEST CORPORATION
Denver - ESCHELON TELECOM OF COLORADO, INC. - CO
Denver - ESCHELON TELECOM OF COLORADO, INC. - CO
-
NORTHGLENN - QWEST CORPORATION
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
LITTLETON - QWEST CORPORATION
Centennial - SPRINT SPECTRUM L.P.
-
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
Centennial - SPRINT SPECTRUM L.P.
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