the aba number is located at the bottom of a check.
where is the aba number located on a check?
bottom
aba rtns are only for use in payment transactions within the united states. they are used on paper check, wire transfers, and ach transactions. on a paper check, the aba rtn is usually the middle set of nine numbers printed at the bottom of the check. domestic transfers that use the aba rtn will usually be returned to the paying bank.
aba routing transit number
yet another form of check verification is to cross reference the aba routing transit number, also called the routing number or aba number, with the bank to check against the actual item being presented. the routing number verification can provide the bank's name, address for processing, and phone number.





















































some routing number verification systems use an algorithm to validate the routing number, rather than cross reference the results in a database.
check verification service