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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

Burlington (MA)
Burlington, Massachusetts, located approximately 20 miles northwest of Boston, is a suburban communi…
Burlington (NC)
Burlington, North Carolina, located in Alamance County, serves as a vital hub in the Piedmont region…
Burnsville (MN)
Burnsville, located in Dakota County, Minnesota, is a suburban city positioned approximately 15 mile…
Burton (MI)
Burton is a city located in Genesee County, Michigan, within the Detroit metropolitan area. Incorpor…
Butte (MT)
Butte, Montana, situated in Silver Bow County, has a rich mining heritage that shapes its historical…
Calabasas (CA)
Calabasas, California, located in Los Angeles County, is a city known for its affluent residential n…
Caldwell (ID)
Caldwell, Idaho, located in Canyon County, serves as a significant urban center in the Treasure Vall…
Caledonia (WI)
Caledonia, Wisconsin, situated in Racine County, was incorporated in 1906 and combines the charm of …
Calexico (CA)
Calexico, California, is a city located in Imperial County, near the Mexican border with Mexicali, B…
Calumet City (IL)
Calumet City, located in Cook County, Illinois, sits just south of the Chicago city limits and has a…
Camarillo (CA)
Camarillo, located in Ventura County, California, is a city known for its rich agricultural history …
Cambridge (MA)
Cambridge, Massachusetts, established in 1630, holds a significant place in American history as one …
  • 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.