1st Source Bank, Bluffton Branch Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, Bluffton Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 124 South Main Street Bluffton, Indiana 46714 Wells County View other branches Phone: 260-824-4800 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: