What is the address for first national bank of south miami? 5750 Sunset Drive. South Miami, FL 33143. About The First National Bank of South Miami. The First National Bank of South Miami was established on April 3, 1952. Headquartered in South Miami, FL, it has assets in the amount of $594,940,000.How do i contact first bank customer service? Email Do not include any personal or account information in your email. For personal account assistance contact us directly at 800-760-2265. Contact First Bank: Mailing Address First Bank Service Center 600 James S. McDonnell Blvd St. Louis, MO 63042 How do i contact fbfb banking? FB Banking Tip. FirstBank will never call, text or email customers unsolicited for personal information. If you receive a call, message or email and you’re unsure if it is FirstBank, do NOT release your information. Hang up and call us at (800) 413-4211 or visit us at your local branch.Where is the first union national bank of florida located? First Union National Bank. Headquarters: First Union National Bank of Florida. 225 Water Street. Jacksonville, FL 32202. Established: 1983-02-14. FDIC Insurance: