if the gov't was to request the numbers an the ISP or PB had to turn them over they could be tracked back to who loaded the card and where.
Like if you use Western Union to load a prepaid card credit/debit card they ask for your name on the form and it must match what is on the card. if they don't- they won't load the card. Many issuers of those cards require your name and your SSN as well due to the Patriot Act.
Western Union here does not ask for anything, no paperwork at all. You hand them the money and they hand you the card. It is pretty much the same at all the places that sell these cards.
·