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Thank you for using TheCountryCodes.com to learn how to call the United States of America from the USA. The chart below includes all known city codes for United States of America.
United States of America
can help reduce your calling costs.
Area Codes in the United States are too numerous to list here. The links below can help you find an Area Code or phone listing for a particular city or state.
U.S. Area Codes: ATT
Area Codes Map
All Area Codes
Country Codes by REGION