There are currently four MVNOs (Mobile Virtual Network Operators) using O2’s network, namely Giffgaff, Sky Mobile, Tesco Mobile and Lycamobile . By choosing one of O2’s MVNOs you can save money and get extra features, while still enjoying the excellent network coverage provided by O2’s mobile network.
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Mobile Networks Using O2 Coverage: Best SIM Cards With Coverage From O2. Networks like giffgaff, Lycamobile, Sky Mobile and Tesco Mobile piggyback on O2’s network for coverage. The UK has only four network coverage providers: EE, O2, Three and Vodafone .
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