Bank Routing Number

First Southern National Bank Routing Number

The primary ABA routing number (RTN) for First Southern National Bank, Lancaster, KY is shown below.

Primary ABA / RTN

042102403

Verify before you send money. This is the bank's primary registered routing number, taken from the FFIEC National Information Center institution record (last refreshed here on October 8, 2026). Banks often use a different routing number for wire transfers than for ACH, and large banks vary it by region; always confirm the correct number on a check or with your bank before initiating a transfer.

What is an ABA routing number?

An ABA routing number, also called a routing transit number (RTN), is a 9-digit code that identifies a U.S. financial institution in the payment system. It tells ACH transfers, Fedwire payments, and paper checks which bank to route money to. The format was created by the American Bankers Association in 1910 and is still the backbone of U.S. domestic payments.

What is the difference between a routing number and an account number?

Your routing number identifies the bank; your account number identifies your specific account at that bank. On a paper check, the routing number is the 9-digit number in the bottom-left, and the account number is to its right.

What is the First Southern National Bank routing number?

The First Southern National Bank routing number is 042102403. It is the primary ABA routing transit number registered to First Southern National Bank, headquartered in Lancaster, KY. A bank can hold more than one routing number, so this is the one on record for the institution, not necessarily the one printed on every check. The number comes from the FFIEC National Information Center institution record, last refreshed here on October 8, 2026.

What is the First Southern National Bank wire routing number?

This page lists 042102403, the primary routing number registered to First Southern National Bank. The record does not say whether the bank uses the same number for wire transfers, and many banks use a separate routing number for domestic wires. Confirm the wire routing number with First Southern National Bank before sending a wire.

Is ABA number 042102403 the routing number for First Southern National Bank?

Yes. ABA number 042102403 is the primary routing number registered to First Southern National Bank. Check it against the routing number on a check or in your online banking before sending an ACH payment, because a bank can use different numbers by region or product.

Which bank uses routing number 042102403?

Routing number 042102403 belongs to First Southern National Bank, headquartered in Lancaster, KY. It is the bank's primary ABA routing number (FDIC certificate 2700).

Routing numbers of similar-size institutions in Kentucky

Bank, Benton, KY: Community Financial Services Bank: 083903328
Bank, Glasgow, KY: Edmonton State Bank: 083904181
Bank, Monticello, KY: Monticello Banking Company: 083902581
Bank, Paducah, KY: The Paducah Bank and Trust Company: 083900402
Bank, Cecilia, KY: The Cecilian Bank: 083904631
Bank, Lexington, KY: Forcht Bank, N.A.: 042108397
Bank, Danville, KY: The Farmers National Bank of Danville: 083901236
Bank, Bowling Green, KY: American Bank & Trust Company Inc.: 083908323

All routing numbers in Kentucky

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Regulator records: FDIC BankFind (cert 2700) · FFIEC NIC profile (RSSD 702612)