Or Validate The ABA Routing Number  
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Format of Frost Bank-citizens ABA Routing Code
Frost Bank-citizens or any banks in USA Routing Number is nine digit unique
identification number.
A routing number can have two forms
- 1. Fraction form
- 2. MICR (magnetic ink character recognition) form.
In General :
The Combination is-
1 | 1 | X | X | Y | Y | Y | Y | Z |
Federal Reserve Routing Symbol | ABA Financial Institution Identifier | Cheque Digit |
In Detail Breakdown :
The Combination is-
1 | 1 | A | A | B | B | C | D | E |
Bank's Physical Location | Federal Reserve Bank the Institution's Electronic and Wire Transfers Will Route Through | Federal Reserve Cheque Processing Center | Federal Reserve District | Chequesum |
- Within the 4 digits Federal Reserve Routing Symbol, the first two digits of the nine digits RTN must be in the ranges 00 through 12, 21 through 32, 61 through 72, or 80. The digits are assigned as mentioned below .
Popular Banks
- PACOE FCU
- KANSAS BLUE CROSS BLUE SHIELD CU
- SELFRELIANCE FED C U
- UNION BANK & TRUST CO.
- BROADWAY FEDERAL BANK, FSB
- THE FIRST NATL BANK OF GRAND RIDGE
- FIRST MARKET BANK
- MIDVALLEY FEDERAL CREDIT UNION
- DELTA NATIONAL BANK & TRUST COMPANY
- CHICOPEE SAVINGS BANK
- BANK OF AMERICA, N.A. - OREGON
- KANSAS CORPORATE CREDIT UNION