The Bridgehampton National Bank, Oceanside Office Branch Basic Info Reviews Routing Numbers Map & Direction Name: The Bridgehampton National Bank, Oceanside Office Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3121 Long Beach Road Oceanside, New York 11572 Nassau County View other branches Phone: 516-536-2498 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021406667YY021413155YY021413935YY021414280YY From: To: