1ST SOURCE BANK Routing Number 071212128 — SOUTH BEND, IN

The ABA routing number 071212128 belongs to 1ST SOURCE BANK in SOUTH BEND, IN. Use for ACH transfers, direct deposits, and check payments.

Updated Jun 2026 1ST SOURCE BANK SOUTH BEND ABA Verified
1ST SOURC…
IN
SOUTH BEND
071212128
Result

1ST SOURCE BANK

SOUTH BEND, IN 46634

ABA Verified

ABA Routing Number

071212128

Routing Number Breakdown

0712 Fed Symbol
·
1212 Institution
·
8 Check Digit
State IN
ZIP Code 46634
Phone (574) 235-2270
Address PO BOX 1602, SOUTH BEND, IN 46634

About Routing Number 071212128 — 1ST SOURCE BANK

Routing number 071212128 is the official 9-digit ABA routing number registered to 1ST SOURCE BANK at PO BOX 1602, SOUTH BEND, IN 46634. It is registered with the American Bankers Association and the Federal Reserve E-Payments Routing Directory. This number is used exclusively within the US domestic payment system — for ACH transfers, direct deposits, check processing, and domestic wire transfers routed through Fedwire. It cannot be used for international transfers, which require a SWIFT/BIC code.

How to Read Routing Number 071212128

The 9-digit number 071212128 is structured in three segments: 0712 is the Federal Reserve routing symbol — the first two digits identify the Federal Reserve district and the next two identify the specific Federal Reserve processing office handling 1ST SOURCE BANK's transactions. 1212 is the ABA institution identifier — four digits assigned by the American Bankers Association uniquely to 1ST SOURCE BANK. 8 is the check digit — a single digit calculated from the first eight digits using a weighted sum formula (3-7-1 multipliers). Payment processing systems run this calculation in real time to catch routing number entry errors before any funds move.

ACH, Direct Deposit, and Wire — When to Use 071212128

  • Direct Deposit — Payroll and Government Payments: Provide routing number 071212128 and your account number to set up payroll direct deposit, IRS tax refunds, Social Security, VA benefits, or any recurring government payment.
  • ACH Transfers — Bill Payments and Bank Transfers: Enter 071212128 when authorising electronic debits or credits — utility bills, insurance premiums, subscription services, or bank-to-bank transfers via NACHA's ACH network.
  • Check Payments: This routing number is printed at the bottom-left of every 1ST SOURCE BANK personal check in SOUTH BEND — the first 9-digit sequence in the MICR line.
  • Domestic Wire Transfers via Fedwire: Confirm with 1ST SOURCE BANK whether 071212128 applies to wires — many banks use a separate wire routing number. Fedwire settles same-day in real time.

What 071212128 Cannot Be Used For

  • International wire transfers — require a SWIFT/BIC code. Find 1ST SOURCE BANK's SWIFT code at the SWIFT Code Lookup.
  • Indian bank transfers (NEFT, RTGS, IMPS, UPI) — require an IFSC code. Use the IFSC Code Lookup.
  • Cheque clearing in India — requires a MICR code. Use the MICR Code Lookup.

How to Verify Routing Number 071212128 Is Correct

Before using 071212128 for a large ACH or wire transfer, verify it three ways: (1) Check the bottom-left of a 1ST SOURCE BANK personal check — the routing number must match. (2) Log into 1ST SOURCE BANK online banking under Account Details. (3) Cross-check against the Federal Reserve routing directory. BankZop sources all routing data from official ABA and Federal Reserve records as of Jun 2026.

Browse more 1ST SOURCE BANK routing numbers in IN or across all states. For all US banks, visit the Routing Number Lookup. For international transfers, use the SWIFT Code Lookup. For loan EMI planning, try the EMI Calculator.

Data sourced from the American Bankers Association (ABA) and the Federal Reserve E-Payments Routing Directory. Last reviewed Jun 2026 by BankZop Editorial Team.

Frequently Asked Questions — Routing Number 071212128