Searching over 200 Billion records



Colorado area code map

Recently Unidentified numbers

co area code numbers that might be spam, scams or that people have reported as unidentified callers

303-268-6291Icg Telecom Group
720-769-7773Unknown Network
720-436-5590Leap Wireless Intl DBA Cricket Comm
719-662-7765360networks (usa) Inc.
720-866-7821Unknown Network
303-467-8609Qwest Corporation
970-707-5674Time Warner Cable Information Svcs (colorado), Co
719-559-6680Falcon Broadband
970-252-1581Qwest Corporation
720-747-2862Qwest Corporation
970-599-9987Leap Wireless Intl DBA Cricket Comm
720-325-1026T-mobile Usa
719-410-6795Unknown Network
970-621-9606Contact Paging Of Colorado
303-291-9106Qwest Corporation
303-666-4767Qwest Corporation
720-641-7189Sprint Spectrum L.p.
720-156-1749Unknown Network
719-778-1934Leap Wireless Intl DBA Cricket Comm
303-949-3793Sprint Spectrum L.p.

Recently Reported Numbers

These are numbers that might be spam, scams or that people have reported as unidentified callers

(323) 642-3704Dangerous

UCLA Health Survey

(231) 735-4981Harassing

Left voicemail about closing out file, called it back and a lady answered and said she didn’t call me ??? Somehow these people r using real people cell !

(636) 242-1935Unknown

Just asked is this "My Name", I said yes, and I'm driving. They hung up.

(704) 486-2951Unknown

answered the phone the 3rd time they called within the same week, said it was a survey company i forgot the name

(800) 945-2000Dangerous

They will block computer & customers lose all files /data.

Statistics about Colorado phone numbers


Number of area codes
in Colorado

56 +

Reported numbers from

Area codes for the largest cities in Colorado


Most searched numbers

All Time This Month
303-467-2109 First seen 2018-05-13 303-268-8306 First seen 2014-12-06
970-599-4178 First seen 2012-10-15 720-436-6437 First seen 2017-12-13
719-410-6591 First seen 2010-04-14 719-662-1964 First seen 2014-10-22
719-778-5376 First seen 2019-01-11 303-949-9531 First seen 2013-05-02
719-410-6591 First seen 2015-04-20 303-666-6316 First seen 2016-07-14
All Time This Month
720-769-6266 First seen 2017-04-22 719-778-2193 First seen 2012-09-21
720-747-8454 First seen 2018-05-04 720-641-6022 First seen 2018-03-05
303-467-5820 First seen 2017-01-07 303-268-4874 First seen 2012-04-30
720-769-6266 First seen 2019-09-15 303-291-9340 First seen 2017-05-28
720-747-8454 First seen 2018-03-15 719-662-3090 First seen 2016-10-18