So, Citi provides a similar "Virtual Account Number" service which allows a cardholder to create a new cc# with a new expiration date and a specific balance, bu

So, Citi provides a similar "Virtual Account Number" service which allows a cardholder to create a new cc# with a new expiration date and a specific balance, but the billing address cannot be customized which reduces the usefulness of the service. As far as I know, it's also free.