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New Area Code Overlay in San Francisco 415 Area

415-628What is the New Dialing Procedure?
To complete calls from a landline phone, the new dialing procedure requires callers to dial 1 + area code + telephone number. This means that all calls in the 415 or 628 area codes need to be dialed using 1 + area code + telephone number. To complete calls from a cellular or mobile phone, callers may dial the area code + telephone number or 1 + area code + telephone number whenever placing a call from a phone number with the 415 or 628 area code browse this site.

When will the change become Mandatory?
Beginning February 21, 2015, you must use the new dialing procedure for all calls. If you do not use the new dialing procedure, your call will not be completed, and a recording will instruct you to hang up and dial again. However, all customers are encouraged to begin using the new dialing procedure before February 21, 2015.

Why is the change Necessary?
To ensure a continuing supply of telephone numbers, the 628 area code will be added to the area served by 415. Since two area codes will now serve the same geographic region, the area code must be used when dialing any telephone number-including calls within the same area code. Beginning March 21, 2015, new telephone lines or services may be assigned numbers using the 628 area code.

What is an area code overlay?
An overlay is the addition of another area code (628) to the same geographic region as an existing area code (415). An overlay does not require customers to change their existing area code.

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