RE: who owns the network25 May 2018 15:41
As an ex BT bod my take is BT Group owns everything. Openreach 'manages / is responsible for' the access network only.
There are many many Networks in BT - and lots of kit (some people have no clue about how much stuff is involved - they just think circuits - not aware of DSLAM, MSAN, Radius, BRAS, Routers, Firewalls, Switches and so on...)
All parts of the network solution must be in place (and capacity is a never ending issue) otherwise Customers don't get a service.