What is 354 area code usa?

The 354 area code is not currently assigned to any geographic location in the United States. This may be due to the fact that the North American Numbering Plan Administration (NANPA) is running out of available area codes. Additionally, some area codes are reserved for special purposes, such as toll-free numbers or government use. It is possible that the 354 area code may be assigned in the future, or it may remain unassigned indefinitely.