Routing Transit Numbers You Can Rely On
Avoid U.S. payment failures, improve straight-through processing and ensure compliance with routing transit number data from the official registrar of the American Bankers Association (ABA).
Contact UsDownload Product BrochureThe Industry’s Source for More Confident Payment Routing
Today’s customers and counterparties expect their payments to be fast, accurate and seamless. Even a single routing error can negatively impact operations, delay funds, damage consumer trust and generate unnecessary costs.
Failed payments are expensive, creating return fees, manual rework, reconciliation delays and customer frustration, and the impact grows quickly at scale. At the same time, maintaining precise, current and readily available bank routing details has become more difficult as routing numbers change, banking institutions consolidate or legacy payment details remain in circulation.
Relying on outdated banking data stored in databases, manual checks or basic format validation is no longer enough to support modern payment expectations.
As the Official Registrar of Routing Numbers for the American Bankers Association (ABA), our real-time data is standardized, authoritative and delivered through daily or monthly updates to help ensure accuracy and reliability.
Failed payments are expensive, creating return fees, manual rework, reconciliation delays and customer frustration, and the impact grows quickly at scale. At the same time, maintaining precise, current and readily available bank routing details has become more difficult as routing numbers change, banking institutions consolidate or legacy payment details remain in circulation.
Relying on outdated banking data stored in databases, manual checks or basic format validation is no longer enough to support modern payment expectations.
LexisNexis® Bankers Almanac® Routing Transit Number (RTN) Data helps organizations ensure U.S. payments are routed correctly the first time by providing more accurate and active routing number data before transactions are processed.
As the Official Registrar of Routing Numbers for the American Bankers Association (ABA), our real-time data is standardized, authoritative and delivered through daily or monthly updates to help ensure accuracy and reliability.
- Reduce Payment Failures
- Enable Straight-Through Processing
- Ensure More Accurate Routing Data
- Lower Costs and Operational Risks
- Deliver a Better Customer and Employee Experience
A Solution Built to Help Ensure Routing Accuracy Across the Payment Lifecycle at Scale
Purpose-built for U.S. payments, this solution eliminates unnecessary global complexity while supporting high-volume, ACH-heavy workflows across banks, payment providers and corporates.
- Authoritative, More Current Routing Data
Continuously updated routing number data captures mergers, retirements and corrections to help ensure accuracy at the source.
- Flexible Delivery & Easy Integration
Easily integrate into existing workflows via API or data files, supporting payments, onboarding, payroll and treasury operations.
- Direct API
- Data file (daily or monthly)
- Built to Scale
A usage-based model designed to support high transaction volumes and grow with your business.
Supports Key Payment Workflows
- Pre-Transaction Controls: Enables routing data validation before payments are initiated to support straight-through processing and automation
- U.S. Payments: Reduce errors, delays and rework
- Bill Pay & Recurring: Improve consistency and accuracy
- Payroll: Help ensure timely, accurate employee payments
- Onboarding: Verify details upfront to prevent downstream issues
The definitive source for U.S. routing data, delivering depth, accuracy and more comprehensive coverage:
- Official source for ABA routing codes, with 21,000+ records and 100% coverage
- Coverage of 9,300+ financial institutions and 92,000+ branch locations
- 100% coverage of Fedwire and FedACH participants
- ABA to SWIFT/BIC pairings for cross-network mapping
- Institution contact information
- Linkages to main branch records
- Maintained by 100+ payment data specialists updating and validating data daily
LexisNexis® Risk Solutions is a Nacha Preferred Partner
for Official Registrar of Routing Numbers.
Maintaining precise, current and readily available banking details can be a formidable task due to
continuous changes such as mergers, routing code changes and branch openings and closings.
As a Nacha Preferred Partner, LexisNexis® Risk Solutions helps ACH users continuously receive the
most up-to-date data continuously, enhancing customer experience and operational efficiency.
Frequently Asked Questions
ABA is a trade association for the U.S. banking industry, established in 1875. It represents banks of all sizes, providing professional development and setting industry standards.
Nacha, formerly known as the National Automated Clearinghouse Association, is a non-profit organization that governs the Automated Clearing House (ACH) Network in the U.S. Nacha develops rules and standards, provides industry solutions and delivers education, accreditation and advisory services, playing a vital role in electronic payments landscape in the U.S.
The ACH Network is an electronic fund transfer system in the U.S. that facilitates account to account payments, under-pinning the Direct Deposits and Direct Payments, with the capability to reach all U.S. bank accounts and credit unions. There were 31.5 billion ACH Network payments made in 2023, valued at $80.1 trillion.
An ABA routing number is a nine-digit code used to identify financial institutions in the U.S. Developed by the ABA, this number is used to transfer money domestically when processing various transactions (e.g. checks, direct deposits), to ensure that funds are sent to the right account.
To request a new, modify or retire an ABA routing number, please complete the relevant information on our ABA routing number page.
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