065203431 routing number is a 9-digit number designed and assigned to Midsouth Bank, N.a. by The American Bankers Association (ABA) to identify the financial institution upon which a payment was drawn. Midsouth Bank, N.a. routing numbers are also known as as "ABA numbers", "routing transit numbers" (RTN), or "check routing numbers". Routing numbers depend on the type of transaction made such as reorder Midsouth Bank, N.a. checks, receive incoming domestic or international wire transfers, use the number for wire transfers to your Midsouth Bank, N.a. account, or to set up direct deposits. Please call Midsouth Bank, N.a. representative at (337) 237-8343 for more information.