<P> This split resulted in Phoenix becoming one of the few major cities in the nation to be split between multiple area codes . Only two cities ended with multiple area codes with this change . While this also made Phoenix one of the few major cities not to be overlaid, ten - digit dialing is still now necessary in certain areas of the metro area . </P> <P> Most areas of Phoenix remained in 602, but a few areas (such as the Ahwatukee neighborhood and parts of Maryvale) transferred to 480 or 623 . The area code divider between 602 and 623 was drawn in such a manner that in some neighborhoods, homes only a few hundred feet away from each other may have different area codes . Glendale's northern half has the area code divider running diagonally through its middle . A small portion of Tempe (west and south of the I - 10 Broadway Curve) also remained in 602 . </P>

Where is area code 602 located in canada