Helena National Bank, Marvell Branch Basic Info Reviews Routing Numbers Map & Direction Name: Helena National Bank, Marvell Branch Main Office: No Service: Full Service Brick and Mortar Office Location: Highway 49 West Marvell, Arkansas 72366 Phillips County View other branches Phone: 870-829-2596 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer084008840YN084100654YY From: To: