Area Code 323 History:
Area code 323 was put into service. Area code 323 was created from a split of area code 213.
Counties in California within area code 323 include:
Los Angeles County.
Major cities or places in California within area code 323 include:
Area code 323 serves the larger cities of Bell, Florence, Los Angeles, Hollywood, Huntington Park and West Hollywood and most of central Los Angeles.