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Area Code 657 Information

State: CA - California
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657 is a planned area code overlay for Northern Orange County, planned to be implemented in late 2008. On Thursday, September 20, 2007, the California Public Utilities Commission approved an overlay of the whole 714 area with the new 657 area code. Permissive 1+ ten-digit dialing within the existing 714 region will start no later than February 23, 2008. Mandatory 1+ ten-digit dialing within 714 will take effect on August 23, 2008, and the new 657 overlay area code first taking effect with new numbers a month later, on September 23, 2008.

Related Area Codes: 714

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