Southern Bancorp Bank, Blytheville Branch Basic Info Reviews Routing Numbers Map & Direction Name: Southern Bancorp Bank, Blytheville Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 120 South Second Street Blytheville, Arkansas 72315 Mississippi County View other branches Phone: 870-763-4443 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer082901334YY082908751YN084100638YN084104883YN084107343YN084205724YN284273912YN From: To: