Comment on O2 VoLTE: locating any customer with a phone callparentComments−signal111yThey've been owned by Telefónica for a while. IIRC Telefónica acquired O2 in 2006, and launched Giffgaff as a new brand in 2009.
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They've been owned by Telefónica for a while. IIRC Telefónica acquired O2 in 2006, and launched Giffgaff as a new brand in 2009.