WhereCall is here to provide you with the most information on the area code 657, located in CALIFORNIA.

NPA Information
Area Code (NPA) 657
In Jeopardy? No
Is Assigned? Yes
Assignment Date 01 Apr 1999
In Service? Yes
In Service Date 23 Sep 2008
Parent NPA 714
Overlay Yes
Overlay Complex
Predominant Timezone(s) UTC-08:00

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