Reliance Bank, Reliance Bank Basic Info Reviews Routing Numbers Map & Direction Name: Reliance Bank, Reliance Bank Main Office: No Service: Full Service Brick and Mortar Office Location: 450 Regency Park O Fallon, Illinois 62269 St. Clair County View other branches Phone: 256-232-1944 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer067092679YN081018888YY081019227YN081025761YN From: To: