The providers most likely to give callers an estimated speed were Karoo (76%), Sky (72%) and Plusnet (67%).

BBC: BT trialist

Phone and broadband provider Plusnet has agreed funding for two years to ensure the continuation of the band's youth education scheme.

BBC: Sheffield & South Yorkshire

Places will only be available to those registered on the official Plusnet Yorkshire Marathon waiting list by 23:59 BST on 22 April.

BBC: Marathon supporters at York castle