Existing numbers won't be impacted, officials said, but all customers will have to use 10-digit dialing to make calls when ...

New numbers will be assigned a new area code. We’ll find out what that is in about two weeks. But what happens to keep numbers from overlapping? “Once this is implemented in about 12 months ...

NXX codes are the first three digits of a phone number that follow the area code. There are 792 possible NXX prefixes in each area code, each consisting of 10,000 numbers.