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Updated Jan 02, 2010Area Code 720
  1. "E" is Eastern Time Zone, "C" is Central Time Zone, "M" is Mountain Time Zone, and "P" is Pacific Time Zone. Occasionally, an area code will fall in more than one time zone. In this case, the abbreviation is a combination of the previous abbreviations. Some area codes are shown with time zones referencing Universal Coordinated Time (UTC).
  2. Additional technical status can be retrived from the North American Numbering Plan Administration on the 720 area code specific link here.
Area Code720 (area code map)
LocationColorado
Dates and historical informationArea code 720 went live into service on June 01, 1998.  It was formed as a subdivision of the 303 area code.
Growth StatusThis area code went live on June 01, 1998 as a result of a subdivision of the 303 area code.  
Technical Status 2Area code 720 is currently live and in service.
Time Zone(s) 1M
LATA numbers served656
Number of rate centers served8
List of rate centersDENVER, LONGMONT, AURORA, DENVERSLVN, BRIGHTON, ALLNSPKLYN, FORTLUPTON, DECKERS
Number of major cities served45
Names of major cities served (ZIP code)Englewood (80111), Centennial (80111), Cherry Hills (80111), Cherry Hills Village (80111), Cherry Hl Vlg (80111), Greenwood Village (80111), Greenwood Vlg (80111), Denver (80202), Longmont (80501), Aurora (80010), (00000), Aurora (80014), Denver (80014), Centennial (80014), Brighton (80601), Thornton (80601), Denver (80222), Denver (80205), Englewood (80112), Centennial (80112), Greenwood Village (80112), Greenwood Vlg (80112), Lone Tree (80112), Littleton (80120), Boulder (80303), Allenspark (80510), Wheat Ridge (80214), Denver (80214), Lakewood (80214), Edgewater (80214), Commerce City (80022), Denver (80022), Brighton (80022), Adams City (80022), Irondale (80022), Littleton (80126), Hghlnds Ranch (80126), Highlands Ranch (80126), Hudson (80642), Denver (80239), Deer Trail (80105), Boulder (80302), Denver (80218), Golden (80401), Evergreen (80401), Lakewood (80401), Westminster (80030), Denver (80030), Broomfield (80020), Westminster (80020), Denver (80209), Boulder (80301), Castle Rock (80104), Englewood (80110), Cherry Hills (80110), Cherry Hills Village (80110), Cherry Hl Vlg (80110), Greenwood Village (80110), Greenwood Vlg (80110), Sheridan (80110), Parker (80134), Denver (80211), Aurora (80015), Centennial (80015), Westminster (80221), Denver (80221), Federal Heights (80221), Federal Hgts (80221), Thornton (80221), Northglenn (80221), Denver (80219), Louisville (80027), Superior (80027), Arvada (80002), Wheat Ridge (80002), Denver (80002), Gibsonia (15044), Bailey (80421), Aurora (80220), Denver (80220), Denver (80227), Lakewood (80227), Littleton (80123), Denver (80123), Centennial (80123), Grants Ranch (80123), Bow Mar (80123), Columbine Valley (80123), Columbine Vly (80123), Lakewood (80123)
Number of exchanges served360
List of exchanges served720-200-xxxx, 720-201-xxxx, 720-202-xxxx, 720-203-xxxx, 720-204-xxxx, 720-205-xxxx, 720-206-xxxx, 720-207-xxxx, 720-208-xxxx, 720-209-xxxx, 720-210-xxxx, 720-212-xxxx, 720-213-xxxx, 720-214-xxxx, 720-215-xxxx, 720-216-xxxx, 720-217-xxxx, 720-218-xxxx, 720-219-xxxx, 720-220-xxxx, 720-221-xxxx, 720-222-xxxx, 720-223-xxxx, 720-224-xxxx, 720-225-xxxx, 720-226-xxxx, 720-227-xxxx, 720-228-xxxx, 720-229-xxxx, 720-230-xxxx, 720-231-xxxx, 720-232-xxxx, 720-233-xxxx, 720-234-xxxx, 720-235-xxxx, 720-236-xxxx, 720-237-xxxx, 720-238-xxxx, 720-239-xxxx, 720-240-xxxx, 720-241-xxxx, 720-242-xxxx, 720-243-xxxx, 720-244-xxxx, 720-246-xxxx, 720-247-xxxx, 720-248-xxxx, 720-249-xxxx, 720-250-xxxx, 720-251-xxxx, 720-252-xxxx, 720-253-xxxx, 720-254-xxxx, 720-255-xxxx, 720-256-xxxx, 720-257-xxxx, 720-258-xxxx, 720-259-xxxx, 720-260-xxxx, 720-261-xxxx, 720-262-xxxx, 720-263-xxxx, 720-264-xxxx, 720-265-xxxx, 720-266-xxxx, 720-267-xxxx, 720-268-xxxx, 720-269-xxxx, 720-270-xxxx, 720-271-xxxx, 720-272-xxxx, 720-273-xxxx, 720-274-xxxx, 720-275-xxxx, 720-276-xxxx, 720-277-xxxx, 720-278-xxxx, 720-279-xxxx, 720-280-xxxx, 720-281-xxxx, 720-282-xxxx, 720-283-xxxx, 720-284-xxxx, 720-285-xxxx, 720-286-xxxx, 720-289-xxxx, 720-290-xxxx, 720-291-xxxx, 720-292-xxxx, 720-293-xxxx, 720-294-xxxx, 720-296-xxxx, 720-297-xxxx, 720-298-xxxx, 720-299-xxxx, 720-300-xxxx, 720-301-xxxx, 720-302-xxxx, 720-304-xxxx, 720-305-xxxx, 720-306-xxxx, 720-308-xxxx, 720-309-xxxx, 720-310-xxxx, 720-312-xxxx, 720-313-xxxx, 720-314-xxxx, 720-317-xxxx, 720-318-xxxx, 720-319-xxxx, 720-320-xxxx, 720-321-xxxx, 720-322-xxxx, 720-323-xxxx, 720-324-xxxx, 720-327-xxxx, 720-329-xxxx, 720-330-xxxx, 720-331-xxxx, 720-332-xxxx, 720-333-xxxx, 720-334-xxxx, 720-335-xxxx, 720-337-xxxx, 720-338-xxxx, 720-339-xxxx, 720-340-xxxx, 720-341-xxxx, 720-343-xxxx, 720-344-xxxx, 720-345-xxxx, 720-346-xxxx, 720-347-xxxx, 720-348-xxxx, 720-350-xxxx, 720-351-xxxx, 720-352-xxxx, 720-353-xxxx, 720-356-xxxx, 720-359-xxxx, 720-362-xxxx, 720-363-xxxx, 720-364-xxxx, 720-365-xxxx, 720-366-xxxx, 720-367-xxxx, 720-368-xxxx, 720-371-xxxx, 720-373-xxxx, 720-374-xxxx, 720-375-xxxx, 720-377-xxxx, 720-379-xxxx, 720-381-xxxx, 720-382-xxxx, 720-383-xxxx, 720-384-xxxx, 720-385-xxxx, 720-389-xxxx, 720-394-xxxx, 720-397-xxxx, 720-401-xxxx, 720-404-xxxx, 720-406-xxxx, 720-407-xxxx, 720-413-xxxx, 720-421-xxxx, 720-422-xxxx, 720-423-xxxx, 720-424-xxxx, 720-425-xxxx, 720-427-xxxx, 720-429-xxxx, 720-433-xxxx, 720-434-xxxx, 720-435-xxxx, 720-436-xxxx, 720-438-xxxx, 720-444-xxxx, 720-447-xxxx, 720-448-xxxx, 720-449-xxxx, 720-457-xxxx, 720-468-xxxx, 720-470-xxxx, 720-472-xxxx, 720-473-xxxx, 720-475-xxxx, 720-479-xxxx, 720-480-xxxx, 720-482-xxxx, 720-488-xxxx, 720-489-xxxx, 720-490-xxxx, 720-493-xxxx, 720-494-xxxx, 720-495-xxxx, 720-496-xxxx, 720-497-xxxx, 720-506-xxxx, 720-514-xxxx, 720-519-xxxx, 720-521-xxxx, 720-524-xxxx, 720-528-xxxx, 720-529-xxxx, 720-530-xxxx, 720-532-xxxx, 720-533-xxxx, 720-535-xxxx, 720-536-xxxx, 720-540-xxxx, 720-542-xxxx, 720-544-xxxx, 720-545-xxxx, 720-548-xxxx, 720-549-xxxx, 720-554-xxxx, 720-555-xxxx, 720-558-xxxx, 720-559-xxxx, 720-560-xxxx, 720-561-xxxx, 720-562-xxxx, 720-563-xxxx, 720-564-xxxx, 720-565-xxxx, 720-566-xxxx, 720-567-xxxx, 720-568-xxxx, 720-569-xxxx, 720-570-xxxx, 720-578-xxxx, 720-579-xxxx, 720-581-xxxx, 720-587-xxxx, 720-596-xxxx, 720-620-xxxx, 720-621-xxxx, 720-622-xxxx, 720-624-xxxx, 720-628-xxxx, 720-629-xxxx, 720-635-xxxx, 720-641-xxxx, 720-652-xxxx, 720-663-xxxx, 720-670-xxxx, 720-675-xxxx, 720-684-xxxx, 720-685-xxxx, 720-690-xxxx, 720-732-xxxx, 720-733-xxxx, 720-744-xxxx, 720-746-xxxx, 720-747-xxxx, 720-748-xxxx, 720-763-xxxx, 720-771-xxxx, 720-775-xxxx, 720-777-xxxx, 720-785-xxxx, 720-810-xxxx, 720-833-xxxx, 720-834-xxxx, 720-836-xxxx, 720-837-xxxx, 720-838-xxxx, 720-839-xxxx, 720-840-xxxx, 720-841-xxxx, 720-842-xxxx, 720-847-xxxx, 720-848-xxxx, 720-849-xxxx, 720-851-xxxx, 720-852-xxxx, 720-854-xxxx, 720-855-xxxx, 720-857-xxxx, 720-858-xxxx, 720-859-xxxx, 720-862-xxxx, 720-863-xxxx, 720-864-xxxx, 720-865-xxxx, 720-867-xxxx, 720-870-xxxx, 720-872-xxxx, 720-873-xxxx, 720-874-xxxx, 720-875-xxxx, 720-876-xxxx, 720-877-xxxx, 720-878-xxxx, 720-879-xxxx, 720-880-xxxx, 720-881-xxxx, 720-882-xxxx, 720-883-xxxx, 720-884-xxxx, 720-886-xxxx, 720-887-xxxx, 720-888-xxxx, 720-889-xxxx, 720-890-xxxx, 720-891-xxxx, 720-895-xxxx, 720-897-xxxx, 720-898-xxxx, 720-903-xxxx, 720-904-xxxx, 720-907-xxxx, 720-913-xxxx, 720-917-xxxx, 720-920-xxxx, 720-921-xxxx, 720-922-xxxx, 720-924-xxxx, 720-929-xxxx, 720-931-xxxx, 720-932-xxxx, 720-933-xxxx, 720-934-xxxx, 720-935-xxxx, 720-936-xxxx, 720-937-xxxx, 720-938-xxxx, 720-939-xxxx, 720-940-xxxx, 720-941-xxxx, 720-942-xxxx, 720-943-xxxx, 720-944-xxxx, 720-945-xxxx, 720-946-xxxx, 720-947-xxxx, 720-949-xxxx, 720-951-xxxx, 720-956-xxxx, 720-961-xxxx, 720-962-xxxx, 720-963-xxxx, 720-971-xxxx, 720-972-xxxx, 720-974-xxxx, 720-975-xxxx, 720-977-xxxx, 720-979-xxxx, 720-980-xxxx, 720-981-xxxx, 720-982-xxxx, 720-984-xxxx, 720-985-xxxx, 720-987-xxxx, 720-988-xxxx, 720-989-xxxx, 720-998-xxxx, 720-999-xxxx
Number of telephone companies26 telephone companies servicing the 720 area code
List of telephone companiesQWEST CORPORATION, NEW CINGULAR WIRELESS PCS, LLC, CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO, SPRINT SPECTRUM L.P., AT&T LOCAL, LEVEL 3 COMMUNICATIONS, LLC - CO, XO COLORADO, LLC, T-MOBILE USA, INC., NEXTEL COMMUNICATIONS, INC., MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO, TELEPORT COMMUNICATIONS GROUP - CO, TIME WARNER TELECOM OF COLORADO LLC-CO, LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC., PAC - WEST TELECOMM, INC. - CO, CBEYOND COMMUNICATIONS, LLC-CO, ICG TELECOM GROUP - CO, ESCHELON TELECOM OF COLORADO, INC. - CO, COMCAST PHONE OF COLORADO, LLC - CO, COMMNET WIRELESS, LLC, ALLEGIANCE TELECOM OF COLORADO, INC., 360NETWORKS (USA) INC. - CO, AMERICAN MESSAGING (AM), INC., GLOBAL CROSSING LOCAL SERVICES, INC.-CO, ILOKA, INC. DBA MICROTECH-TEL - CO, MCIMETRO ACCESS TRANSMISSION SERVICES LLC, GREAT WEST SERVICES, LTD. - CO

720 Area Code Map

 
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