ABA Routing Number Lookup

Enter a 9-digit routing number to find the bank name, address, and transaction types — ACH, wire, and check.

Try: 021000021 (Chase NY) or 121042882 (Wells Fargo CA)

11,689

Routing Numbers

7,900

Banks & Credit Unions

States Covered

2,609

Credit Unions

What Is an ABA Routing Number?

An ABA routing number is a 9-digit code that identifies a specific US financial institution. Every bank, credit union, and savings institution that participates in electronic payments has at least one routing number.

Routing numbers are used for ACH direct deposits, wire transfers, check processing, and bill payments. Large banks often have different routing numbers for different states or transaction types.

Learn how routing numbers work

Routing Number Structure

021000021

Digits 1–4: Federal Reserve routing symbol — identifies the Fed district

Digits 5–8: Institution identifier — uniquely identifies the bank

Digit 9: Check digit — validates the routing number with a weighted checksum

Browse by Institution Type

Routing numbers are assigned to commercial banks, credit unions, and savings institutions. Each type has different characteristics and services.

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Commercial Banks

Full-service banks offering checking, savings, loans, and investment services. Includes large national banks like Chase, Bank of America, and Wells Fargo.

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Credit Unions

Member-owned, not-for-profit financial cooperatives. Often offer better rates than commercial banks. Includes Navy Federal, PenFed, and thousands of local credit unions.

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Savings Institutions

Thrifts, savings banks, and savings associations specializing in savings accounts and mortgage lending. Includes federal savings banks and savings associations.