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Mobile carriers worldwide

O2

O2 (typeset as O2) is a British brand owned by Spanish telecommunications company Telefónica, used for its subsidiaries in the United Kingdom and Germany, its former subsidiaries in the Czech Republic and Slovakia, and since 2018 as an online-only flanker brand in Spain.

See it on o2online.es
Network operator
Country
United Kingdom
Owner
Telefónica
Since
2001
Network
Runs its own
Website
o2online.es

O2 (typeset as O2) is a British brand owned by Spanish telecommunications company Telefónica, used for its subsidiaries in the United Kingdom and Germany, its former subsidiaries in the Czech Republic and Slovakia, and since 2018 as an online-only flanker brand in Spain.

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