About VAT and Italian Fiscal Code verification field

Hi all,
is there any plug in to verify the VAT and Italian Personal Fiscal Code inserted by user is correct and not put it random?

(For Italian Personal Fiscal Code, normally, there are 3 letters for Surname, 3 for Name, the last 2 number of birth's year, a letter corrisponding the birth's month, and so on)

Anyone knows about someone has developed something like this?

Thank you

Suppose you could have it a field on registration then use Code Validation provided by CB Code Field to implement your own custom PHP side validation to that field. Then map that field to CBSubs invoice field within CBSubs > Settings > Display > Invoices (or force map it using CB Auto Actions and probably field action).