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View detailsOne routing number for 13 million members
Navy Federal Credit Union is the largest credit union in the world by both assets and membership — over $165 billion in assets and more than 13 million members. Despite a scale that rivals most regional banks, Navy Federal uses a single routing number for every account: 256074974.
Founded in 1933 as the Navy Department Employees Credit Union with just seven members, Navy Federal expanded eligibility over the decades to include all branches of the armed forces, the Department of Defense, and their families. It has never acquired another institution, which is why one routing number still covers every member.
Who can join
Membership is open to active-duty military, veterans, Department of Defense civilian employees, and family members of existing members. "Family member" is defined broadly — spouses, children, siblings, grandparents, grandchildren, and household members. Once someone in a family joins, eligibility extends outward. A civilian with a sibling who served can often qualify. Membership is retained for life, even after leaving military service.
Routing number and transfers
256074974 works for all transaction types — ACH transfers, direct deposit, wire transfers, and bill payments — across checking, savings, money market, and certificate accounts. There's no distinction by account type or member location. A member at Camp Pendleton in California uses the same routing number as a member in Vienna, Virginia, where Navy Federal is headquartered.
The 256 prefix ties to the Federal Reserve Bank of Richmond, which covers Virginia, Maryland, the Carolinas, West Virginia, and DC — consistent with Navy Federal's Northern Virginia headquarters near the Pentagon.
For domestic wire transfers, the routing number is the same: 256074974. Navy Federal's SWIFT code for incoming international wires is NFCUUS33. Outgoing domestic wires cost $14 — significantly less than the $25-$30 most commercial banks charge. Incoming wires, domestic and international, are free.
How credit union routing numbers differ from bank routing numbers
Credit unions participate in the same ACH and Fedwire systems as commercial banks and use the identical nine-digit ABA format. The difference is institutional: credit unions are member-owned cooperatives rather than shareholder-driven corporations, so they tend to grow more conservatively and avoid the acquisition chains that leave big banks with dozens of legacy routing numbers. Navy Federal's operational simplicity is a direct result of that structure.
Navy Federal also participates in the CO-OP shared branching network, giving members access to over 5,000 shared branch locations — a hybrid of digital-first operations and physical access that distinguishes it from purely online institutions.
What Slash brings to business accounts
Navy Federal proves that scale and simplicity can coexist — one routing number serving millions. Slash was built on that same conviction for business banking: a single account with straightforward details, no legacy routing number lookups, and modern tools like unlimited virtual cards, automated receipt matching, and real-time spend visibility that credit unions and traditional banks weren't designed to offer.
