What is Track1?

Track 1: B4030503072400703^BARAK/OBAMA^181820111448800773300000

Start sentinel – ‘B’
‘4030503072400703’ – Primary account number (up to 19 characters).
‘^’ – Field Separator
BARAK/OBAMA – Last Name/First Name (2 to 26 characters)
‘^’ – Field Separator
Four digits ‘1818’ (after separator) – is Expiration date in the format YYMM.
Three digits ‘201’ (after Expiration date) – is Service code.
The rest digits is Discretionary data