ABA Routing Transit Number
An ABA Routing Transit Number (RTN) is a 9-digit numerical code assigned to financial institutions in the United States, used to identify the bank responsible for domestic clearing. RTNs are managed by Accuity on behalf of the American Bankers Association and are used for ACH and Fedwire clearings.
Aliases: routing transit number, RTN, ABA number
Standards & Citations
- 🌐 ISO 9362 / ISO 13616: International standards for financial identifiers (ISO OBP).
- 🏢 SWIFT Registration Authority: Designated ISO registration authority (swift.com).
- 📂 swiftbic.org Data Register: Provenance registry for bank code data (Data Sources).