Which network does each piggybacker use? PROVIDERPIGGYBACKING FIRMO2Major players: Giffgaff*, Tesco Mobile*, Sky Mobile*. Smaller firm: Lyca Mobile*ThreeMajor players: iD Mobile*, Smarty*. Smaller firm: FreedomPop*, Honest Mobile, SuperdrugPiggybacking your phone network – how to slash costs – MSE www.moneysavingexpert.com › mobiles › piggybacking