nope, you must buy a phone that works with sprint service to use sprint. Other companys use some of the same technologys, so certain company's phones may work with another company's service. There are many different types of service, tdma, cdma, gsm are the main ones. Currently most networks have switched to gsm, offers faster internet. So if two companys use gsm then their phones can be interchangable. Sprint uses Cdma technology which is the same as Verizon. As I said in an earlyer post, Verizon mostly uses the same phones as sprint so there is no benifit. Bottom line no you must buy a sprint phone to use sprint.