The Arkansas Public Service Commission says customers with the 870 area code should be prepared for 10-digit dialing and the introduction of the new 327 area code.

COLUMBUS, Ohio — A new phone area code “overlay” has been approved for the 440 zone, with officials saying the current code soon will run out of available numbers.

Area code overlay is the introduction of a new area code to a region. In this case, 457 is being added to the 318 area code ...

Early last year, the PUC adopted the area code overlay, the state’s first. Starting last December, 11-digit dialing was permissible within the 310 area code; as of July 26, it will be mandatory.

A PROPOSED NEW OVERLAY AREA CODE for parts of New York City will be the topic of two virtual public statement hearings.

The 447 area code will be added as an overlay to the region currently served by the area code 217. This is being done to ensure a continuing supply of telephone numbers for the area.

Under the state's first new area code overlay, virtually all new phone numbers within the 310 territory will be assigned the new 424 area code, starting in August 2006; existing numbers will ...

The overlay refers to a new three-digit area code that all new customers–or any customers who seek additional phone lines–will get when the 847 area code numbers run out.