Wanderlust World Wanderlust World Siam Commercial Bank (SCB), Thailand's oldest commercial bank, doesn't use routing numbers—and for good reason. Routing numbers are a uniquely American banking construct.
Routing numbers (ABA numbers) are nine-digit codes identifying U.S. financial institutions for domestic transfers, direct deposits, and bill payments. They're administered by the American Bankers Association and only function within the United States' Federal Reserve system.
Thailand's banking system operates on entirely different infrastructure. SCB and other Thai banks use:
If you're sending money to an SCB account from abroad, you'll need the SWIFT code, not a routing number. For transfers within Thailand, the domestic bank code suffices. The Thai Baht (THB) currency further distinguishes the system—no USD routing infrastructure applies.
This distinction matters for expats, businesses, and anyone moving money across borders. Always verify the correct identifier with the receiving bank to avoid delays or misdirected funds.