Area Code 818 California, USA

WhereCall is here to provide you with the most information on the area code 818, located in California, USA. This area code contains 795 prefixes and is in jeopardy of exceeding the known supply of central office codes during the planning/implementation interval for relief.

NPA Information
Area Code (NPA) 818
Location California, USA
In Jeopardy? Yes
Is Assigned? Yes
In Service? Yes
In Service Date 07 Jan 1984
Parent NPA 213
Overlay Yes
Overlay Complex 747/818
Predominant Timezone(s) UTC-08:00
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