You shouldn’t be lifting off the cover ….it may or may not still be in use , they are SCP ( secondary connection points ) and sit between the PCP and DP in the copper network, the ones removed from the network ( ‘cut out’ ) the individual DP’s are re-cabled directly to the PCP , making the SCP redundant , but it’s impossible to tell just by looking .
The only way it would be of interest to you ( as far as in use or not ) would be if it were in the way of ( for example ) putting in a driveway ….the survey just to find out if it’s in use or not would be chargeable , and if it is still ‘live’ the costs to remove to could be considerable.
As stated , it’s got nothing to do with BT , Openreach and BT are not interchangeable terms , and BT are no more or less responsible for it than ( for example ) Sky or Talk Talk .
