The Western Union NetSpend Prepaid MasterCard - the power of a NetSpend prepaid card with Western Union Money worldwide money transfer. Get your card. Netspend is a leading provider of FDIC-insured Visa ® Prepaid and Prepaid Mastercard ® and corporate prepaid card solutions in the United States. Learn how a Western Union NetSpend Prepaid MasterCard works. Order a card online at no cost, activate it and use it anywhere MasterCard is accepted.