ELMIRA SAVINGS BANK, FSB ROUTING ABA NUMBER. The last reported ABA Number for Elmira Savings Bank, Fsb is 221370399. According to our bank database, this bank location is a main office and servicing FRB number is 221370399. There are several Elmira Savings Bank, Fsb routing numbers reported in our bank database. Please call (607) 737-2589 to verify routing number for your bank wire transfer, reorder Elmira Savings Bank, Fsb checks or setting up direct deposit. You can also get your Elmira Savings Bank, Fsb routing number on your check, view sample check to locate your ABA number.