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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

Rowlett (TX)
Rowlett, Texas, located in the Dallas metropolitan area, serves as a rapidly growing suburb of Dalla…
Roy (UT)
Roy, Utah, located in Weber County, lies approximately 30 miles north of Salt Lake City and is part …
Royal Oak (MI)
Royal Oak, Michigan, located in Oakland County, is notable for its vibrant community and rich histor…
Royal Palm Beach (FL)
Royal Palm Beach, located in Palm Beach County, Florida, is a village characterized by its suburban …
Rubidoux (CA)
Rubidoux is an unincorporated community located in Riverside County, California, adjacent to the cit…
Russellville (AR)
Russellville, Arkansas, located in the heart of the Arkansas River Valley, serves as the county seat…
Ruston (LA)
Ruston, Louisiana, serves as the parish seat of Lincoln Parish and is known for its rich history and…
Saginaw (MI)
Saginaw, Michigan, located in the heart of the Great Lakes Bay Region, has a rich industrial history…
Saint Andrews (SC)
Saint Andrews, South Carolina, located in Charleston County, is an unincorporated community with a r…
Saint Charles (IL)
Saint Charles, Illinois, located approximately 40 miles west of Chicago, serves as a vibrant suburb …
Saint Charles (MD)
Saint Charles, Maryland, is an unincorporated community located in Charles County, approximately 25 …
Saint Charles (MO)
Saint Charles, Missouri, located along the Missouri River, is a city steeped in rich history and not…
  • 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.