First Bank, First Bank Basic Info Reviews Routing Numbers Map & Direction Name: First Bank, First Bank Main Office: Yes Service: Full Service Brick and Mortar Office Location: 2465 Kuser Road Hamilton, New Jersey 08690 Mercer County View other branches Phone: 256-395-2255 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021214163YN031207924YN031207966YN From: To: