Account Identifiers and Routing Codes

Account identifiers and routing codes are the numbers and codes banks, card networks, and payment systems use to direct money or transaction data to the correct institution, account, or card issuer. This branch covers bank account numbers, BBAN, IBAN, BIC, routing numbers, sort codes, BIN, and PAN identifiers.

Use these pages when a payment instruction, wire, ACH entry, card transaction, bank statement, reconciliation item, or account-verification record depends on the exact identifier used.

What This Branch Covers

Decision Lens

Start with the instruction being routed. A correct customer name is not enough if the account number, routing code, IBAN, card PAN, or bank identifier points to a different account or institution.

Evaluation Checklist

• Identify the payer, payee, bank, account, routing code, card identifier, network, instruction date, and processing status.
• Separate account identifiers from institution identifiers, card credentials, customer names, and reference numbers.
• Check payment instructions, account agreements, bank statements, processor records, return codes, and correction notices.
• Review whether a mismatch changes settlement, returned-item treatment, fraud review, or reconciliation.
• Treat privacy, fraud, legal, sanctions, and liability conclusions as professional-advice areas.

Common Mistakes

• Using a domestic routing code where an international identifier is required.
• Confusing card issuer identifiers with bank account routing information.
• Assuming a payee name controls when the payment system relies on numeric identifiers.
• Reusing old account details without confirming the current bank record.

In this section

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