Yes.  You most certainly can.  Transactionally, prepaid cards work the same as debit cards or credit cards.  However, if you are planning on using a prepaid card to cover the expense of a subscription that requires a monthly payment, be sure that you determine the date on which the payment will be deducted from your prepaid account each month.  You will need to ensure that you have enough money on your prepaid card, on or before the date that the payment for your subscription is due.  Otherwise, your payment will be declined and your subscription will likely fall into jeopardy.