First South Bank, Williamston Branch Basic Info Reviews Routing Numbers Map & Direction Name: First South Bank, Williamston Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1067 Brentway Avenue, Suite 136 Williamston, North Carolina 27892 Martin County View other branches Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer053112602YN253171621YY From: To: