First Commonwealth Bank, Regent Square Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Commonwealth Bank, Regent Square Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1105 South Braddock Avenue Pittsburgh, Pennsylvania 15218 Allegheny County View other branches Phone: 412-881-3383 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer043303887YN043306826YY044011453YN From: To: