If you send money to bank accounts in Mexico you should read this.
The CLABE (Clave Bancaria Estandarizada, Spanish for "standardized banking cipher") is a banking standard for the numbering of bank accounts in Mexico. This standard is a requirement for the sending and receiving of domestic inter-bank electronic funds transfer since June 1, 2004. The CLABE account code has 18 digits.
The CLABE replaces the old Mexican account numbering scheme where the account number had 11 digits. The provision for CLABE standardization was issued by the Asociación de Bancos de México (ABM) (Mexican Bank Association) in conjunction with the Banco de México (Mexico's Central Bank). It ensures that the inter-bank fund transfers, payroll deposits, or automatic service charges are made to the correct accounts.
The 18 digits of the CLABE follows this structure:
- 3 Digits: Bank Code
- 3 Digits: Branch Office Code
- 11 Digits: Account Number
- 1 Digit : Control Digit