COLUMBIA, S.C. — On April 25th, ten digit dialing in the 803 area code will go into effect for all calls. Instead of dialing the seven digit number, you’ll have to add the area code before you dial.

LEXINGTON, Ky. (WKYT) - Get ready to update your phone contacts or do a little more dialing when calling someone who’s in the 859 area code. Beginning October 24, “ten-digit dialing” will go into ...

In many parts of the US, it has long been possible to make local calls with just the seven-digit phone number; the three-digit area code was implicit for calls between numbers using the same area code ...