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MOENCHENGLADBACH, GERMANY - SEPTEMBER 18, 2020: O2 mobile phone store in Moenchengladbach. O2 is a mobile operator owned by Spanish company Telefonica Stock Photo - Alamy
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DORTMUND, GERMANY - JULY 15: O2 Mobile Phone Store On July 15, 2012 In Dortmund, Germany. O2 Had 3.745 Billion EUR Revenue In 2009. Stock Photo, Picture and Royalty Free Image. Image 23342676.
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Ingolstadt, Germany : O2 shop. O2 is a European telecommunications company, specialized in mobile telephony owned by Telefonica Stock Photo - Alamy
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BERLIN, GERMANY - AUGUST 26, 2014: O2 mobile phone store in Berlin. As of 2013, Telefonica O2 had 17 percent market share in German mobile operators Stock Photo - Alamy
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More data volume, higher surfing speeds, 5G in all tariffs, advantage for young people: The co-growing tariffs o2 Mobile launch | Telefónica Deutschland
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Celle, Germany : O2 shop. O2 is a European telecommunications company, specialized in mobile telephony owned by Telefonica Stock Photo - Alamy
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Tariff innovation for the 20th brand birthday of o2: o2 Grow - the first growing mobile tariff in Germany | Telefónica Deutschland
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