1ST STATE BK Routing Number 103103503 — RYAN, OK

The ABA routing number 103103503 belongs to 1ST STATE BK in RYAN, OK. Use for ACH transfers, direct deposits, and check payments.

Updated Jun 2026 1ST STATE BK RYAN ABA Verified
1ST STATE…
OK
RYAN
103103503
Result
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1ST STATE BK

RYAN, OK 73565

ABA Verified

ABA Routing Number

103103503

Routing Number Breakdown

1031 Fed Symbol
·
0350 Institution
·
3 Check Digit
City RYAN
State OK
ZIP Code 73565
Phone (580) 757-2221
Address 527 WASHINGTON, RYAN, OK 73565
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About Routing Number 103103503 — 1ST STATE BK

Routing number 103103503 is the official 9-digit ABA routing number registered to 1ST STATE BK at 527 WASHINGTON, RYAN, OK 73565. 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 103103503

The 9-digit number 103103503 is structured in three segments: 1031 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 STATE BK's transactions. 0350 is the ABA institution identifier — four digits assigned by the American Bankers Association uniquely to 1ST STATE BK. 3 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 103103503

  • Direct Deposit — Payroll and Government Payments: Provide routing number 103103503 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 103103503 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 STATE BK personal check in RYAN — the first 9-digit sequence in the MICR line.
  • Domestic Wire Transfers via Fedwire: Confirm with 1ST STATE BK whether 103103503 applies to wires — many banks use a separate wire routing number. Fedwire settles same-day in real time.

What 103103503 Cannot Be Used For

  • International wire transfers — require a SWIFT/BIC code. Find 1ST STATE BK'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 103103503 Is Correct

Before using 103103503 for a large ACH or wire transfer, verify it three ways: (1) Check the bottom-left of a 1ST STATE BK personal check — the routing number must match. (2) Log into 1ST STATE BK 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 STATE BK routing numbers in OK 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.

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Frequently Asked Questions — Routing Number 103103503