Illinois National Bank, North Dirksen Parkway Branch Basic Info Reviews Routing Numbers Map & Direction Name: Illinois National Bank, North Dirksen Parkway Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 2450 North Dirksen Parkway Springfield, Illinois 62702 Sangamon County View other branches Phone: 217-747-8500 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071107233YY071108355YN071109338YY081225707YN From: To: