It was founded in 2003 as a subsidiary of Carphone Warehouse and was demerged as a standalone company in March 2010. It is headquartered in London.
Originally just a provider of fixed line telephony services to consumers, TalkTalk now offers fixed and mobile telephony and broadband services to consumers under the TalkTalk brand, and telephony and broadband services to business customers under the TalkTalk Business brand. Like some other UK broadband providers, TalkTalk has invested in its own exchange infrastructure, known as local-loop-unbundling (LLU), with 92% of its customer base unbundled as of December 2012. Since August 2012, TalkTalk has become the UK's second quadruple play service after Virgin Media, offering TV, broadband, phone, and mobile services.