BT Group

BT Group (British Telecom)

  • Openreach (manages BT local network)
  • BT Retail (home broadband)
  • BT mobile (virtual network operated by Vodafone)
  • Subsidiaries including:
  • BT Wholesale - operates networks on behalf of other companies
  • As of 2016 the EE mobile and broadband network.

Network filtering


BT operates the Cleanfeed filter on its network which blocks illegal child sexual abuse content and content blocked by order of the courts[2][3].

BT Parental Controls

BT introduced a network-level filter for adult content, BT Parental Controls, in December 2013[4]. It is reported[5] to be using Nominum as its source for site categorisation. BT spent a "seven figure sum"[6] obtaining the system.

Court-ordered blocks

BT uses a combination of Cleanfeed and Nominum for court ordered blocks.

(See Content filtering by UK ISPs)

Data Protection

External links


  1. BT reel in Madasafish and Plusnet: Should customers be worried?
  2. BT puts block on child porn sites | Technology | The Observer
  3. BBC News - BT Ordered to block links to Newzbin 2 website
  4. BT Parental Controls
  5. No anon pr0n for you: BT's network-level 'smut' filters will catch proxy servers too, Register, 2013-12-17
  6. Cartier vs Sky, 2013