Amboy Bank, Ernston Branch Basic Info Reviews Routing Numbers Map & Direction Name: Amboy Bank, Ernston Branch Main Office: No Service: Full Service Brick and Mortar Office Location: Highway 9 Old Bridge Township, New Jersey 08859 Middlesex County View other branches Phone: 732-727-5900 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021204416YY021206278YN From: To: