Cardinal Bank, Herndon Branch Basic Info Reviews Routing Numbers Map & Direction Name: Cardinal Bank, Herndon Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 199 Elden Street Herndon, Virginia 20170 Loudoun County View other branches Phone: 703-435-9705 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer056004623YN056008849YY From: To: