First Northern Bank and Trust Company, Mt. Bethel Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Northern Bank and Trust Company, Mt. Bethel Branch Main Office: No Service: Full Service Brick and Mortar Office Location: Route 611 Mount Bethel, Pennsylvania 18343 Northampton County View other branches Phone: 800-344-2274 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer031312929YY031319236YN From: To: