1st Constitution Bank, 1st Constitution Bank Basic Info Reviews Routing Numbers Map & Direction Name: 1st Constitution Bank, 1st Constitution Bank Main Office: Yes Service: Full Service Brick and Mortar Office Location: 2650 Route 130 Cranbury, New Jersey 08512 Middlesex County View other branches Phone: 609-655-4500 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021207154YY021213504YN From: To: