Talk:O2 Germany/@comment-26572271-20180614184814/@comment-24682153-20180614192122

Well, there are different ways of writing o2 or O2 and of course with lowered 2.

Wikipedia writes it in captial O both in its English and German article.

https://en.wikipedia.org/wiki/Telef%C3%B3nica_Germany

https://de.wikipedia.org/wiki/Telef%C3%B3nica_Deutschland_Holding