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USA Cities & Listing Area Codes

Welcome to our directory of area codes by city across the United States. This page allows you to quickly locate the area code for any U.S. city, providing an easy reference for those looking to identify or verify phone codes. Browse through the cities listed below to find detailed area code information tailored to each location.

USA Cities & Area Codes

Collinsville (IL)

Collinsville (IL)

Collinsville, Illinois, located in the Metro East region of the St. Louis metropolitan area, has a r…

Colorado Springs (CO)

Colorado Springs (CO)

Located in the foothills of the Rocky Mountains, Colorado Springs is the third most populous city in…

Colton (CA)

Colton (CA)

Colton, California, located in San Bernardino County, serves as a significant hub within the Inland …

Columbia (MD)

Columbia (MD)

Columbia, Maryland, located in Howard County, is a planned community founded in 1967 by James W. Rou…

Columbia (MO)

Columbia (MO)

Columbia, Missouri, situated at the intersection of Interstate 70 and U.S. Route 63, serves as the c…

Columbia (TN)

Columbia (TN)

Columbia, Tennessee, founded in 1807, serves as the county seat of Maury County and is steeped in ri…

Columbine (CO)

Columbine (CO)

Columbine, Colorado, is an unincorporated community located within Jefferson County, situated southw…

Columbus (GA)

Columbus (GA)

Columbus, Georgia, located along the Chattahoochee River, serves as one of the state's key urban cen…

Columbus (IN)

Columbus (IN)

Columbus, Indiana, located approximately 40 miles south of Indianapolis, is known for its significan…

Columbus (MS)

Columbus (MS)

Columbus, Mississippi, located in the northeastern part of the state, serves as an important cultura…

Columbus (NE)

Columbus (NE)

Columbus, Nebraska, serves as the county seat of Platte County and has a population of approximately…

Columbus (OH)

Columbus (OH)

Columbus, Ohio, the state capital and the largest city in the state, sits at the confluence of the S…

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How do I find the area code for a specific U.S. city?
Simply scroll through our city listings or use the search feature to find the city you’re looking for. Each city entry includes the area code(s) that correspond to that location.
Do some cities have multiple area codes?
Yes, larger cities or those in regions with high demand often have multiple area codes. This allows for a greater number of phone numbers within the same geographic area and helps accommodate growth in highly populated locations.
Why might a city’s area code change or gain additional codes?
Area codes are added or changed as cities grow and require more phone numbers. This often results in overlay codes or splits, where new area codes are introduced alongside existing ones to ensure adequate numbering for all residents and businesses.