Founder: John Carrington
O2 Customer Service Number: 0800 977 7337
Areas Served: UK(United Kinkdom)
Industry: Telecommunications
Parent: Telefónica
Headquarters: Bath Road, Slough, Berkshire, United Kingdom
Predecessor: BT Cellnet
Founded: 1985 (as Cellnet)
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Founded in 1985 by John Carrington O2 has now become the second largerst Mobile Telecommunication Company in United Kingdom which is located in Slough in UK.

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