CREDO Mobile, a Virtual Network Operator in USA which resells Sprintâ€™s network to people. It also donates a portion of the monthly mobile charges to non-profit groups and progressive causes. For now, they are not offering any Windows Phones under their network for people to buy, but in an response to Kevyn of Glance and Go Radio regarding Windows Phones, they replied that one such device is coming to their network later this year. Hope it happens.
Here is the message from them,
Thanks for your message and for your interest in CREDO Mobile.
Actually, we are adding such a phone later this year, so please stay tuned!
Source: Glance and Go Radio