ISIN.net assists with all aspects of the bond cusip process.
A cusip for a bond is simply a ‘social security’ number for the securities. The CUSIP number acts as the identifier for the bond. That is, by typing in the actual cusip for the bond, the bond information would ‘pop up’, much like if you punched in your social security number or drivers license number.
A bond cusip is typically obtained for those companies seeking to raise debt capital. Investors would have some comfort level knowing the bond has a cusip.
ISIN.net can assist with your bond CUSIP.