First Hawaiian Bank, Mililani Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Hawaiian Bank, Mililani Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 95-390 Kuahelani Avenue Mililani, Hawaii 96789 Honolulu County View other branches Phone: 808-623-1111 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer121301015YY121403065YN121405238YN From: To: