Heritage Bank of Commerce, Alameda/Contra Costa County Courier Basic Info Reviews Routing Numbers Map & Direction Name: Heritage Bank of Commerce, Alameda/Contra Costa County Courier Main Office: No Service: Limited Service Messenger Office Location: 387 Diablo Road Danville, California 94526 Contra Costa County View other branches Phone: 925-314-2851 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer121135773YY121142287YY121142850YY121143040YY121143697YY121144528YY From: To: