First National Bank Texas, Sherman Banking Center - Rc 820 Basic Info Reviews Routing Numbers Map & Direction Name: First National Bank Texas, Sherman Banking Center - Rc 820 Main Office: No Service: Full Service Retail Office Location: 401 East Highway 82, Box 2 Sherman, Texas 75092 Grayson County View other branches Phone: 903-893-7340 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer111902398YY111906271YY111926057YN113010217YN122106455YY From: To: