The 520 area code received a few more years of life as Southern Arizona's solo area code after 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.

Folks using the 520 area code to connect to Flagstaff phone numbers will no longer be able to do so, starting next week. Much of rural Arizona — including the Flagstaff region — will completely switch ...

PHOENIX — Residents in three large area codes in Arizona will have to transition to 10-digit dialing later this year, the Arizona Corporation Commission announced. Those in the area codes of 480, 520, ...

PHOENIX (AP) - The Arizona Corporation Commission has announced residents in three large area codes in Arizona will have to transition to 10-digit dialing for all local calls later this year. The ...

PHOENIX (AP) - Starting Sunday, phone users in much of Arizona must include area codes when dialing to make all calls, including local calls that previously only required seven digits. As in many ...

The addition of the 480 and 623 area codes in 1999 caused some initial confusion. The 520 area code was designated for areas outside Maricopa County in 1995. The 520 was split to add a 928 area code ...

Sometime in the next five years or so, some Southern Arizona residents are going to find out that their new neighbors have a different area code.

PHOENIX — Sometime in the next five years or so, some Southern Arizona residents are going to find out that their new neighbors have a different area code. But no current customer will get a new ...

Tucson residents are among millions of Arizonans who will have to start dialing the area code along with the local seven-digit number when making phone calls this Sunday. The change — made to ...