Five Things Every Colorado Consumer Should Know About the Colorado No-Call List

Almost every evening, without fail, when my family sits down to dinner the phone starts ringing. The caller on the other end is rarely an acquaintance or family member, but typically a telemarketer. In order to help lessen the frequency of these irritating phone calls, my family registered our phone number on the “Colorado No-Call List,” but quickly discovered that it didn’t provide the remedy we sought, and many of the calls continued.

Although a great deal of advertising in today’s market is done on the internet, telemarketing is still a widely used practice that can cause Colorado consumers headaches. In order to curb these sorts of harassing and annoying calls from telemarketers, the Colorado General Assembly passed the “Colorado No-Call List Act” in 2001. According to the Department of Regulatory Agencies website, over 2.7 million Coloradans have since added their numbers to the Colorado No-Call List. There is also a National Do Not Call Registry, which was adopted by the Federal government in 2003.

In order to ensure that they stop receiving unwanted calls from telemarketers, there are five tips that every Colorado consumer should know.

  • Consumers should register with both the Colorado and National lists

Since there are separate state and national no-call registries, consumers will be most protected from unwanted calls by registering with both lists.

To register with the Colorado No-Call List, visit the COLORADO NO CALL LIST WEBSITE. 


 To register without the National Do Not Call Registry, visit the NATIONAL NO CALL LIST WEBSITE.

  •  Any personal phone number can be registered.

The Colorado No-Call List is available to residential phone numbers, as well as wireless telephone and fax numbers. However, the Colorado No-Call Act does not apply to businesses, so businesses cannot sign up for the Colorado No-Call List.


  • Telemarketers lists are not immediately updated once consumers register.

If a consumer registers a telephone number on the Colorado No-Call List, the telemarketers lists are not immediately updated. Telemarketers are only required to update their lists quarterly, on April 30, July 31, October 31, and January 31, so telemarketers may register for the Colorado No-Call List and remain on telemarketers solicitation lists for several months. For example, if a consumer registers a phone number between January 1 and March 31, telemarketers do not need to update their list until April 31 of that same year.


For more information on this schedule, please visit the DORA WEBSITE.  


  •  Not all telephone solicitations are prohibited.

Although the purpose of the Colorado No-Call List makes it unlawful for a telemarketer to contact a consumer by telephone once his or her phone number has been added to the list, there are a number of solicitations and calls that the law does not apply to.


The law does not apply to:

  1. Calls where the resident whose number is listed has already given express permission or invitation to telemarketers.
  2. Calls by a business that the resident whose number is listed has an established business relationship with.
  3. Calls from businesses that the resident whose number is listed has contacted in the previous 30 days.
  4. Calls by a charitable organization
  5. Calls made for the sole purpose of urging support or opposition to a political candidate or ballot issue
  6. Calls made for the sole purpose of conducting political polls or soliciting opinions


  • Consumers that receive telemarketing calls in violation of the Colorado No-Call law can file a complaint.

If prohibited telemarketing phone calls continue after a phone number has been registered on the Colorado No-Call List, then a consumer can file a complaint. These complaints will be used by the Colorado Attorney General’s Office to determine if there is a pattern of violations that requires enforcement of the No-Call List Act. 

Consumers can also pursue private remedies, such as filing a claim in small claims court.

To file a complaint, please visit  the COLORADO NO CALL LIST WEBSITE.

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