First Financial Bank, Prospect Avenue Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Financial Bank, Prospect Avenue Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1611 South Prospect Avenue Champaign, Illinois 61821 Champaign County View other branches Phone: 217-351-6620 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071100858YN071103473YY074900356YY From: To: