Regular expression for masked bank card?

Question

Payment systems

Help me write a regular expression to search DLP-system SearchInform for masked bank cards, for example, in the following format:
1) XXXX-XXXX-XXXX-4digits
2) XXXXXXXXXXXX4digits
There is a regular expression for searching for unmasked cards:
\b[3-6]\d{3 }[ \-_.]?(\d{4}[ \-_.]?){2}\d{4}\b {Bank card number
} Perl

Answer 1

(\d{4}([-]|)\d{4}([-]|)\d{4}([-]|)\d{4})

Answer 2

Do not forget about cards with lengths 18 and 19, and also that the first 6 digits - BIN - may not be masked