USAA Customer Service Phone Numbers Customer Service: 800-531-USAA (8722) Fax Number: 800-531-5717 Routing Number: 314074269 Trust Services: 877-899-6325 Extended Vehicle Protection Program: 877-387-8722 Quicken® and Microsoft® Money Support: 800-531-0617 Automated Security Verification: 800-272-9440, 800-556-4146 Debit Card: 800-430-3886 New and Pre-qualified Mortgage Loans: 210-531-USAA (or 210-531-8722) USAA Real Estate Rewards Network Assistance: 800-258-4060 Loans In Process or Application Status: