JCB is a credit card company based in Tokyo, Japan. It was primarily accepted by tourism-related businesses such as car rental companies, airlines, hotels, Japanese speciality retailers. The vast majority of JCB credit card numbers start with 35 and is 16-digit long. The credit card number must pass the Luhn Algorithm Check. Every JCB card number has a specifically prefix like: 3528-3589.Re-Generate
If you want to validate a credit card number, here is a Credit Card Validator.