Orrstown Bank, Duncannon Branch Basic Info Reviews Routing Numbers Map & Direction Name: Orrstown Bank, Duncannon Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 403 North Market Street Duncannon, Pennsylvania 17020 Perry County View other branches Phone: 717-582-8188 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer031309259YN031315036YY From: To: