Guaranty Bank & Trust, N.A., Longview Branch Basic Info Reviews Routing Numbers Map & Direction Name: Guaranty Bank & Trust, N.A., Longview Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 200 W. Hawkins Parkway Longview, Texas 75605 Gregg County View other branches Phone: 903-758-2292 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer111024852YN111915327YY111925304YN From: To: