The ABA number appears as a fraction on the upper edge of all printed checks and identifies the geographic area and specific bank on which the check is drawn,
A personal check that has been certified as valid and funded by the payer's bank is known as a certified check. It is a form of "official" compensation. Cashier's checks and certified checks are frequently confused by people.
A collection of numbers known as a check routing symbol can be found printed in the upper area of a check that is paid through the Federal Reserve System as the denominator of a fraction. It is also known as the fractional bank number on the check.
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