My ISP addy has been shadowed to one in London, btcentralplus.com. My pc says another one.
I found this out when trying to do on online speed test. No I don't know why either...
That's
exactly what I've been telling people above !
Unless you're careful when picking your ISP, the vast majority of ISPs simply re-package one of the numerous permutations of wholesale ADSL packages that BT offers ISPs.
"BT Central" being the term for one of the wholesale ADSL products.
ISPs who wish to operate on the cheap can resell what is basically a white-label BT ADSL line, which entails using BT IP addresses. ISPs who for some obscure reason wish to hand over
even more cash to BT can do more fancy stuff... still a BT ADSL line, but with the ISPs own IP ranges thanks to some magic boxes.
That's why I said its worth hunting for LLU or Cable, because otherwise you're basically just ending up with a BT line sold to you under a different name.