What is Track2 dump ?

Example of Track2: 509186375685509=17171010000018180000

‘509186375685509’ from the sample abowe – is Primary account number.
Usually, match the credit card number printed on the front of the card.
‘509186’ – first 6 digits of Primary account number is BIN
‘=’ – is Separator
Four digits ‘1717’ (after separator) – is Expiration date in the form YYMM.
Three digits ‘101’ (after Expiration date) – is Service code.
The first digit specifies the interchange rules,
the second specifies authorisation processing
and the third specifies the range of services
The rest digits is Discretionary data