Allegiance Bank, Katy Branch Basic Info Reviews Routing Numbers Map & Direction Name: Allegiance Bank, Katy Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 520 Westgreen Blvd Katy, Texas 77450 Harris County View other branches Phone: 281-517-8710 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer111903258YN113024096YN113024410YN113024517YN113025723YY113113402YN From: To:
