TalkTalk Telecom Group plc is a television, home phone, broadband, mobile broadband and mobile business, launched in 2003 as a subsidiary of The Carphone Warehouse plc.

In March 2010 the company demerged from The Carphone Warehouse Group plc and was listed on the London Stock Exchange.

TalkTalk took Carphone Warehouse's place in the FTSE 250 Index as a result.

Originally solely a fixed landline provider, TalkTalk now operates and sells home phone and broadband packages to UK customers under the TalkTalk and AOL Broadband brands.

The company also provides services to business customers under the Opal brand.

Like some other UK broadband providers on the ADSL network, TalkTalk has invested in its own exchange infrastructure, known as Local Loop Unbundling (LLU), with 72% of its customers base unbundled as of December 2009.

The company received negative press in 2006 and 2007 for offering a broadband product it was unable to supply in a timely fashion to many customers following its "broadband for free" campaign.

Source: Wikipedia