We receive a lot of abuse from this domain and a lot of webmasters are blocking it.
But since the domain has no website it was not clear what it was.
After a long search I have discovered that its British Telecom DSL.
See DSL report page. This was the only site that told what it was.
Why the lame tecs at BT dont have a website at that domain is confusing because not knowing what it is is getting BT customers globaly banned.
btcentralplus.com should not be banned as it is a ISP
It is not clear yet if dsl modems keep the same IP so we have to ban by IP until we know.
To the folks at BT Please put a website at www.btcentralplus.com