The National Bank of Blacksburg, South Main Branch Basic Info Reviews Routing Numbers Map & Direction Name: The National Bank of Blacksburg, South Main Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3600 South Main Street Blacksburg, Virginia 24060 Montgomery County View other branches Phone: 540-951-6246 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer051403122YY051405447YN051405735YN251473075YN From: To: