Next month, people with 602 and 623 area codes must start dialing 10 digits (their area code +their phone number) for all local calls. The Utilities Department of the Arizona Corporation Commission ...

Find out why southern Arizona residents will soon encounter a new area code. Learn about the factors causing the shortage of phone numbers.

Does your phone number start with 602? On Monday, that’s something to celebrate. The civic holiday, dubbed 602 Day, commemorates the city’s longest-standing area code. “602 Day is a celebration of ...

Your area code is probably a pretty insignificant part of your life, unless it's June 2. Have you ever heard of Area Code Day? It's a way for cities around the country to embrace their local flare and ...