Area Code 310 California, USA

WhereCall is here to provide you with the most information on the area code 310, located in California, USA. This area code contains 800 prefixes and is not in jeopardy of exceeding the known supply of central office codes during the planning/implementation interval for relief.


NPA Information
Area Code (NPA)310
LocationCalifornia, USA
In Jeopardy?No
Is Assigned?Yes
In Service?Yes
In Service Date02 Nov 1991
Parent NPA213
OverlayYes
Overlay Complex310/424
Predominant Timezone(s)UTC-08:00
Reverse Phone Lookup »
310 area code map