A new area code will soon be introduced in north Mississippi as the region continues to see growing demand for phone numbers. The Mississippi Public Service Commission has approved the addition of the 471 area code, which will overlay the existing 662 area code. Beginning Friday, customers who request new phone service or add an additional line in the 662 region may be assigned a phone number with the 471 area code. Officials said 471 numbers will only be issued after all available 662 numbers have been exhausted. The introduction of the new area code will not change how local calls are made.