Arkansas, like the rest of the United States, follows the North American Numbering Plan (NANP) for its phone number format. Phone numbers in Arkansas consist of a three-digit area code followed by a seven-digit local number. The area codes used in Arkansas include 501, 870, and 479. These area codes help in identifying the specific geographic region or city associated with the phone number. For example, the 501 area code is primarily assigned to central Arkansas, including cities such as Little Rock and Conway, while the 479 area code covers the northwest part of the state, including cities like Fayetteville and Fort Smith. It is essential to dial the area code along with the local number when making calls within Arkansas or from outside the state.
Arkansas has continued its shift toward mobile connectivity. Data from 2023 shows that 78.9% of adults in Arkansas rely solely on mobile phones, up from 68.0% in 2019—a gain of nearly 11 percentage points in four years. Arkansas residents who primarily use a wireless phone make up 11.9%, while 3.3% use both mobile and landline. Those who mainly rely on landlines and those who only use landlines have declined to 2.7% and 1.8% respectively. Adults without any phone service account for 1.3%. Arkansas now exceeds the national average for mobile-only adoption, reflecting the state's embrace of mobile-first communication.