Area code 323 was brought into effect on June 13, 1998. 323 was split from the parent 213 area code.
Counties in Area Code 323
- Los Angeles.
Most Populous Cities in Area Code 323
|City||County||City Population||Time Zone|
|Los Angeles||Los Angeles||2,413,343||PST|
|Bell Gardens||Los Angeles||102,766||PST|
|South Gate||Los Angeles||95,782||PST|
|Huntington Park||Los Angeles||76,168||PST|
|West Hollywood||Los Angeles||20,783||PST|
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View all United States Area Codes.