O2 Mobile Phone Network

Year Started:

1985 (originally ‘Cellnet’ in the UK) / 2006 – present (Telefónica Europe plc)

Customers service address:

Telefonica UK Limited Correspondence Department

PO Box 202

Houghton Regis

LU6 9AG

Customer Service Telephone Number:

0844 809 0202 (or 202 from your O2 handset)

History:

Telefónica Europe plc is a European based telecommunications company that trades as O2 in the UK. The company derives from a number of companies from are the world, known in the UK in the 1990s as BT Wireless and Genie Internet, both subsidiaries of British Telecommunications.

Telefónica Europe is a main player in the mobile and landline telecommunications services across Europe. With operations in the United Kingdom, Ireland, the Czech Republic, Germany and Slovakia.

Back in 2005, O2 agreed to be taken over by telecommunications company Telefónica, a Spanish company offering £17.7 billion in cash (equivalent of £2 per share). O2 is now a wholly owned subsidiary of Telefónica, but retains the name O2 in the UK and is registered as a U.K. registered public company.