Very rare to see a manhole outside of an exchange that says Easynet or Sky on it,
My local market town exchange has manhole covers and duct routes from Vodafone, Sprint, Eastern Group Telecom, Viatel, Cable and Wireless, Telewest amongst many others outside. Of course none of them offer alternative connectivity FTTC/P to any residential customers.
But more to the point. I've never seen a manhole cover or pole with Openreach written on it.
They all have BT stamped as owners.
We know who owns the pension deficit of Openreach, BT. None of the other players contribute. Who owns the outside plant? Poles, structures and duct routes that have both Openreach and BT Wholesale cables and tubes contained within.