Shamrock Bank, N.A., Durant Branch Basic Info Reviews Routing Numbers Map & Direction Name: Shamrock Bank, N.A., Durant Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3225 Shamrock Lane Durant, Oklahoma 74701 Bryan County View other branches Phone: 580-924-0022 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer103101547YY103104010YN103104269YN103111964YN103112387YN From: To: