About 1km from my home is this building in some woodland with an old T LOGO on the door, and lots of fans wiring inside. It's about 300m up the road from cabinet 3, and about 2/3k from the Darley Dale Exchange.
It also looks like the new ducting BT have laid for the new cabinet 12 ends up in some man holes about 50m away from it.
Looks like electric sub station type of thing, but you would normally see warning signs on it.
Quite. I wonder if its a subtended exchange, e.g. an extension. Some towns used to have small exchanges, that eventually became prefixes on a longer number, e.g. 88 on the start of 4 digit numbers meant the extension exchange.
Random guess!
20 years of broadband connectivity since 1999 trial - Live BQM