Area code 310
California · Los Angeles (west side), Santa Monica
- Area code
- 310
- Country
- United States
- Region
- California
- Major cities
- Los Angeles (west side), Santa Monica
- Time zone
- America/Los_Angeles
- Note
- Westside Los Angeles area code.
This is a domestic area code inside United States. It is not the international calling code.
Frequently asked questions
Which cities use area code 310?
Area code 310 serves California in United States, including Los Angeles (west side), Santa Monica.
What region does area code 310 cover?
Area code 310 covers California. Area codes route calls to a specific city or region within a country's national telephone network.
What is the difference between an area code and a calling code?
A calling code routes a call across borders to a national network, while an area code routes it to a city or region inside that network. For a United States number, the country calling code is the international prefix and 310 is the domestic area code.
What time zone is area code 310 in?
Area code 310 is in the IANA time zone America/Los_Angeles.
Is area code 310 the international calling code?
No. 310 is a domestic area code inside United States, not the international calling code. To call this region from abroad, you dial the country's calling code first, then 310 and the local number.