EntityQ1759255· pop 18· linked from 231 articlesO2Sign in to saveglobal brand name owned by the Spanish telecommunications company TelefónicaConnectionsO2EntityBT GroupEntityadvertisingEntityTelefónicaEntityHigh Speed Packet AccessEntityEvolved HSPAEntity3EntityO2 SlovakiaEntityPost Office LimitedEntitylist of mobile network operators of EuropeEntityTalkTalk GroupEntityLondonCityCzech RepublicCountryRepublic of IrelandCountrySlovakiaCountrySingaporeCountryMunichEntityoxygenEntityBratislavaEntitySouth AsiaEntityCategories2001 establishments in EnglandCompanies based in SloughTelecommunications companies established in 2001Telecommunications companies of the United KingdomTelefónica