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Colorado area code map

Recently Unidentified numbers

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

303-668-5910T-mobile Usa
970-492-4959Qwest Corporation
720-909-9072Unknown Network
970-767-4197Union Telephone Company
970-335-8891Qwest Corporation
970-373-5486Level 3 Communications
970-658-6192Level 3 Communications
719-888-5233Unknown Network
970-837-6687Unknown Network
720-120-8656Unknown Network Clec
720-108-9619Unknown Network
720-485-3232Unknown Network
970-843-5012Unknown Network
970-366-2001Level 3 Communications
970-923-2090Qwest Corporation
970-640-3598Cellco Partnership DBA Verizon Wireless
720-899-3703Unknown Network
303-847-5046Level 3 Communications
970-958-4580Unknown Network

Recently Reported Numbers

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

(201) 200-0000Safe

This is a test report

(844) 422-8347Safe

This is a test report

1 (210) 381-2959Harassing

Caller claims to be with the social security office. Told me I owe the federal government $100, and when asked what for, said "taxes". The IRS will not call, but sends written notice.

(661) 341-0194Harassing

Caller would not tell me who he was and was demanding to connect me with an employee - He claimed that he worked for Servel and was not very professional asking for the employee

(201) 200-0000Safe

This is a test report

Statistics about Colorado phone numbers


Number of area codes
in Colorado

60 +

Reported numbers from

Area codes for the largest cities in Colorado


Most searched numbers

All Time This Month
970-837-1917 First seen 2018-05-25 970-658-6243 First seen 2015-03-18
720-485-6969 First seen 2017-11-04 720-485-6969 First seen 2010-07-16
303-668-6904 First seen 2012-06-30 720-899-3378 First seen 2017-03-22
970-373-4680 First seen 2011-05-17 970-843-2890 First seen 2016-07-21
970-640-4562 First seen 2014-07-05 970-958-4412 First seen 2019-06-18
All Time This Month
970-923-4364 First seen 2019-01-12 970-373-1210 First seen 2011-06-21
303-668-4848 First seen 2018-01-03 970-335-2621 First seen 2011-10-23
970-366-1764 First seen 2017-05-30 970-923-4364 First seen 2018-05-22
720-120-1777 First seen 2016-05-03 303-668-4848 First seen 2010-09-13
970-640-4463 First seen 2015-03-24 720-899-5704 First seen 2017-11-18