Method and system for refilling mobile terminal prepaid phone cards via electronic distribution of refill codes. Refill codes for prepaid phone cards are distributed to end users via a prepaid phone card distributor, which contracts with mobile phone operators and prepaid phone card retailers to distribute refill codes. End users enter identification and payment information to the refill code distributor, which then records the payment and returns a refill code to the end users. End users can purchase refill codes by mediums including a computer network and refill terminals located at retail shops.