What is 543 area code?

The 543 area code is not currently in use in the United States. Area codes are typically assigned to specific geographic regions within a country to help facilitate the routing of telephone calls. It is possible that the 543 area code may be assigned in the future as population and telephone usage patterns change. If you receive a call from a number with the 543 area code, it is possible that the call is fraudulent or spam. It is always a good idea to be cautious when receiving calls from unfamiliar area codes.