Area code 928, Telephone prefix in Flagstaff and Yuma, Arizona, United States
Area code 928 is a telephone prefix covering northern, eastern, and western Arizona, including Flagstaff, Yuma, Lake Havasu City, and Kingman. The code covers wide landscapes, from high plateaus and desert zones to mountain regions of the state.
The prefix 928 came into use in 2001 after a split from the previous area code 520, which covered most of Arizona outside Phoenix and Tucson. The division happened to accommodate growth in Flagstaff, Yuma, and other smaller communities in the north and west.
The prefix links calls across long distances between desert communities and mountain towns with sparse populations. Many places within this zone lie several hours apart by car, yet they share the same dialing code.
All calls within the region require ten-digit dialing, including the three-digit prefix before every local number. This rule applies to all phones, whether landline or mobile, throughout the entire region.
The code reaches down to the Mexican border at Yuma and also covers parts of tribal lands in the northeast. This prefix connects places that can be more than 300 miles (480 kilometers) apart under one single number.
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