720 Area Code Prefixes Directory

If you know the complete number you’re looking up, please use the Phone Number Search above. Or to explore prefixes in different coverage areas, please use the tables below.

AT&T; Local
Carrier

Coverage Area
Counties: Boulder, Denver, Larimer,
Cities: Longmont, Denver, Lyons, Aurora

Mcleodusa Telecommunications Services- Co
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Eschelon Telecom Of Colorado
Carrier

Coverage Area
Counties: Denver,
Cities: Denver, Aurora

Cbeyond Communications
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Icg Telecom Group
Carrier

Coverage Area
Counties: , Denver, Boulder
Cities: Aurora, Denver, Longmont

Tw Telecom Of Colorado LLC
Carrier

Coverage Area
Counties: , Denver
Cities: Aurora, Denver

Comcast Phone Of Colorado
Carrier

Coverage Area
Counties: Denver,
Cities: Denver, Aurora

Bandwidth.com Clec
Carrier

Coverage Area
Counties: , Denver, Clear Creek, Adams, Boulder, Weld
Cities: Aurora, Denver, Keenesburg, Idaho Springs, Brighton, Longmont, Fort Lupton

360networks (usa) Inc.
Carrier

Coverage Area
Counties: Denver, Boulder,
Cities: Denver, Longmont, Henderson

Mcimetro Access Transmission Services LLC
Carrier

Coverage Area
Counties: Denver, , Adams
Cities: Denver, Hudson, Brighton

Zippytech Incorporated
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Commnet Wireless
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Iloka DBA Newcloud Networks
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Ymax Communications Corp.
Carrier

Coverage Area
Cities: Deer Trail

Peerless Network Of Colorado
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Hypercube Telecom
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Broadvox-clec
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Onvoy
Carrier

Coverage Area
Counties: Denver,
Cities: Denver, Sedalia

American Messaging (am)
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Global Crossing Local Services-co
Carrier

Coverage Area
Counties: Denver
Cities: Denver

365 Wireless
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Neutral Tandem-colorado
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Telstar Communications Inc
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Teliax
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Centurylink Communications LLC
Carrier

Coverage Area
Counties: Denver
Cities: Denver

Dishnet Wireline, L.l.c.
Carrier

Coverage Area
Counties: Denver
Cities: Denver

The 720 area code is located in Denver, Colorado including Longmont, Englewood and was originally put into service on January 1st 1970. Find whose number this is.

Recently Reported Numbers

(720) 504-1549Dangerous

Cory Gardner

(720) 504-1549Safe

From my senator

(720) 666-6554Unknown

This number called 720-666-6554. Asked for a name that she couldn't pronounce, so I told her if she can't pronounce my name she shouldn'tcall. She hanged up.

(720) 640-2595Unknown

Robo call, scam.

(720) 240-7172Unknown

Called my cell phone and hung up when I answered.

(720) 440-0975Unknown

Who owns this number?

(720) 456-3745Unknown

I have closed this account and putting it into a consolation program. Yet they still call yo haresse me.

(720) 738-1653Dangerous

This person called and when it went to voicemail could hear noises in background not saying anything then they hung up definitely not legitimate business caller

(720) 541-5025Unknown

Received a call on my cell.

(720) 534-3457Unknown

got a call

Recently Searched Numbers

No additional information reported for these searched numbers. Received a call from any phone number listed below? Please consider helping the community by reporting your experience.

720-630-6603
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New Cingular Wireless PCS
720-700-8294
Report
UNKNOWN
720-455-8467
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Qwest Corporation
720-573-6775
Report
UNKNOWN
720-969-6155
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UNKNOWN
720-728-9047
Report
UNKNOWN
720-426-8297
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Qwest Corporation
720-704-9492
Report
UNKNOWN
720-190-6868
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UNKNOWN
720-823-5999
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UNKNOWN
720-929-1514
Report
Qwest Corporation
720-793-4658
Report
UNKNOWN
720-322-8825
Report
Qwest Corporation
720-469-3601
Report
New Cingular Wireless PCS
720-858-6920
Report
Qwest Corporation
720-615-9807
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UNKNOWN
720-550-8056
Report
Mcleodusa Telecommunications Services- Co
720-839-5514
Report
Sprint Spectrum L.p.
720-637-6482
Report
UNKNOWN

Most searched numbers

Cell
All TimeThis Month
720-931-9879First seen 2015-12-19720-588-7799First seen 2016-05-08
720-145-5595First seen 2019-10-01720-389-9761First seen 2017-08-28
720-745-9039First seen 2019-09-07720-821-4431First seen 2017-02-18
720-315-3190First seen 2010-11-03720-855-2241First seen 2019-03-22
720-253-5331First seen 2016-12-01720-826-2168First seen 2013-06-08
Landline
All TimeThis Month
720-195-3030First seen 2014-02-26720-821-2530First seen 2014-08-09
720-344-7834First seen 2016-09-14720-913-4156First seen 2013-04-03
720-950-3984First seen 2010-04-16720-351-5688First seen 2012-06-15
720-492-1644First seen 2011-07-24720-380-7704First seen 2010-10-07
720-558-1748First seen 2019-05-03720-129-7737First seen 2020-03-12

Cities With coverage

CITY LIST
Aurora
Brighton
Deer Trail
Denver
Englewood
Fort Lupton
Golden
Henderson
Hudson
Idaho Springs
Keenesburg
Littleton
Longmont
Lyons
Sedalia