American Trust & Savings Bank, First Avenue Branch Basic Info Reviews Routing Numbers Map & Direction Name: American Trust & Savings Bank, First Avenue Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 301 First Avenue, East Dyersville, Iowa 52040 Dubuque County View other branches Phone: 563-875-2491 Please enable JavaScript to view the comments powered by Disqus. From: To: