Savings Institute Bank and Trust Company, West Main Branch Basic Info Reviews Routing Numbers Map & Direction Name: Savings Institute Bank and Trust Company, West Main Branch Main Office: No Service: Full Service Retail Office Location: 60 Cantor Dr Willimantic, Connecticut 06226 Windham County View other branches Phone: 860-450-0748 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer011104283YN011501598YN211174181YY211174301YN211572615YN From: To: