Royal Banks of Missouri, Earth Citiy Frontenac Branch Basic Info Reviews Routing Numbers Map & Direction Name: Royal Banks of Missouri, Earth Citiy Frontenac Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3330 Rider Trail South Drive Earth City, Missouri 63045 St. Louis County View other branches Phone: 314-298-8200 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer081001439YY081018833YN From: To: