The 729 code will be assigned to people requesting brand new lines. Customers will be required to dial the area code and the seven-digit telephone number to complete local calls.

The 837 area code is a new overlay for customers served by the 530 area code, the California Public Utilities Commission announced.

A new area code has arrived in Colorado. Starting July 7, the 748 area code will exist within the current 970 area code, overlapping the entire existing region, which stretches from the northern ...

Starting on January 31, some California residents in the 530 area code will notice a new three-digit number at the start of their phone numbers.

The Public Utility Commission of Texas on Monday announced Houston will add the 346 telephone area code on July 1. The new number involves an overlay of existing area codes 713, 281 and 832 in ...