São Tomé and Príncipe IBAN Validator & Format Checker
Validate and decode any São Tomé and Príncipe International Bank Account Number (IBAN). Test the structure against the official format mask, check digits, and run an offline bank lookup.
São Tomé and Príncipe IBAN Structure Rules
Every International Bank Account Number in São Tomé and Príncipe follows a standardized format registry layout:
| Country Code | ST (São Tomé and Príncipe) |
| Total Length | 25 characters |
| SEPA Member | No (Non-SEPA) |
| Structure Format Mask | ST86 1234 5678 9012 3456 7890 1 |
| BBAN Regex Pattern | ^[0-9]{21}$ |
| Branch Code Range | Characters 9 to 12 (4 digits) |
| Account Number Range | Characters 13 to 25 (13 digits) |
Frequently Asked Questions
How long is a São Tomé and Príncipe IBAN?
A São Tomé and Príncipe IBAN consists of exactly 25 characters. It starts with the country code 'ST', followed by two check digits, and then the Basic Bank Account Number (BBAN).
What is the format of a São Tomé and Príncipe IBAN?
The official format mask for a São Tomé and Príncipe IBAN is 'ST86 1234 5678 9012 3456 7890 1'. The BBAN component matches the structure pattern '^[0-9]{21}{{FAQ_ACCORDION}}#039;.
Does São Tomé and Príncipe participate in SEPA?
São Tomé and Príncipe is not a member of the Single Euro Payments Area (SEPA). International wire transfers to São Tomé and Príncipe typically route via the SWIFT network.
How do I decode a São Tomé and Príncipe IBAN?
A São Tomé and Príncipe IBAN can be decoded into: the country code 'ST' (characters 1-2), check digits (characters 3-4), and the domestic bank account identifier containing the branch code (characters 9-12), and account number (characters 13-25).