First Hawaiian Bank, Tamuning Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Hawaiian Bank, Tamuning Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 353 Chalan San Antonio Rd, Suite 101 Tamuning, Guam 96913 Guam County View other branches Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer121301015YY121403065YN121405238YN From: To: