Colorado Area Codes
The Centennial State
Look Up a Colorado Phone Number
Enter a phone number to check for spam reports and caller information
Major Cities in Colorado
About Colorado Phone Numbers
Colorado, known as "The Centennial State", is located in the Mountain West region of the United States with a population of approximately 5,773,714 residents. The state capital is Denver. Colorado operates in the Mountain (MT) timezone and covers 104,094 square miles.
Phone numbers in Colorado are assigned across 5 different area codes, including 303, 719, 720, 970, 983. Major cities like Denver, Colorado Springs, Aurora, Fort Collins each have their own area code coverage.
If you receive calls from Colorado area codes, use our free phone lookup tool to identify the caller. You can check if a number has been reported as spam, find carrier information, and see community reports from other users who received calls from the same number.
Nil sine numine (Nothing without providence)- State Motto of Colorado
Frequently Asked Questions
Colorado has 5 area codes: 303, 719, 720, 970, 983. These area codes cover the entire state, including major cities like Denver, Colorado Springs, Aurora.
Colorado operates in the Mountain (MT) timezone. When calling Colorado phone numbers, consider the time difference to avoid calling at inappropriate hours.
Use our free phone number lookup tool to check if a Colorado number has been reported as spam. Simply enter the phone number in the search box above to see community reports, spam ratings, and caller information.
Colorado has a population of approximately 5,773,714 residents, making it a mid-sized state in the United States.