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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

Rapid City (SD)

Rapid City (SD)

Rapid City, located in South Dakota, serves as the second-largest city in the state and is known as …
Raytown (MO)

Raytown (MO)

Raytown, Missouri, located in Jackson County, is a suburb of Kansas City situated approximately six …
Reading (MA)

Reading (MA)

Reading, Massachusetts, located approximately 15 miles north of downtown Boston, is a town steeped i…
Redan (GA)

Redan (GA)

Redan, Georgia, is an unincorporated community located in DeKalb County, approximately 15 miles east…
Redding (CA)

Redding (CA)

Redding, California, located in Shasta County, serves as a regional hub in Northern California's exp…
Redford (MI)

Redford (MI)

Redford, Michigan, located in Wayne County, is a suburb of Detroit, offering a blend of urban and su…
Redlands (CA)

Redlands (CA)

Redlands, California, located in San Bernardino County, is an inland city recognized for its distinc…
Redmond (WA)

Redmond (WA)

Redmond, Washington, located in King County, is a city renowned for its robust technology sector and…
Redondo Beach (CA)

Redondo Beach (CA)

Redondo Beach, located in Los Angeles County, California, is a coastal city known for its picturesqu…
Redwood City (CA)

Redwood City (CA)

Redwood City, located in San Mateo County, California, lies on the San Francisco Peninsula and serve…
Reedley (CA)

Reedley (CA)

Reedley, California, located in Fresno County, is a city with a rich agricultural heritage, often re…
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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.

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