Astoria Bank, East Islip Branch Basic Info Reviews Routing Numbers Map & Direction Name: Astoria Bank, East Islip Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 180 East Main Street East Islip, New York 11730 Suffolk County View other branches Phone: 631-581-9005 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer221471861YN221472815YY From: To: