ABA Routing Number

ABA Routing Number: A nine digit number that is used on checks to identify the bank that the account is from.

“The ABA RTN was originally designed to facilitate the sorting, bundling, and shipment of paper checks back to the drawer’s (check writer’s) account. As new payment methods were developed (ACH and Wire), the system was expanded to accommodate these payment methods.”

https://en.wikipedia.org/wiki/ABA_routing_transit_number

View  Glossary and Payment Processing Terms