Prefix City (Optional) No longer required and
not used in the calculation of the 9-digit routing number. However, most
fractional routing numbers on checks continue to display it. This determines the
closest Fed Bank branch to the issuing bank.
Institution ID (Required) This number identifies
the issuing institution of the account. This number is unique only within
the Fed Bank series (the denominator). Determines digits 5 - 8 of the 9-digit
Issuing Branch No.
(Optional) This is the least
commonly used aspect of the fractional routing number. This is an optional
assignment to show the originating branch.
Fed Bank Code
(Required) This determines the
institution type and the reserve bank the account is processed through.
Determines digits 1 - 4 of the 9-digit routing number.