BT Hostname 217.39.24.12 showing on Speedtest.net

[#1]

I've just done a speed test using speedtest.net and it is showing BT as my provider. I know that Plusnet is part of BT but I have never seen BT hostname. I've seen Infonet Services but not BT. Is this correct? Don't tell me Plusnet have so many customers now that they have run out of addresses?
And I know my download speed is ONLY 6 Mbps!! What can I do? I don't want to pay extra for the fibre cable 

[#2]

Plusnet recently started using some additional ranges of IP addresses, almost all details about your 217.39.X.X IP address (from a whois lookup) show Plusnet. Perhaps the speedtest.net website needs to update their database or whatever they use to determine ISPs.

[#3]

Depending on how far you are from the exchange 6Mbps may be all you can get.
What does http://www.dslchecker.bt.com/adsl/adslchecker.welcome say?
Could you post the information asked for here: http://community.plus.net/forum/index.php/topic,143835.0.html

[#4]

Hi - You went through all this back in August when best speed was a fraction over 7Mbps?
Can you recall if you have had to reboot the router as if you did that before 9am or after 4pm you may have synced at a lower speed.
May be worth  a graceful shutdown and restart between 12 and 1 or at the weekend  10 til 3.

[#5]

Thanks spoon and cedlor, but I wasn't querying the speed. I just made that remark off the cuff, just in case someone picked that up from the attachment. 
I just wanted to make sure that the hostname and ip address was legit which has been answered.
Thanks again.

[#6]

Don't think it's a new range. If someone nudges me tomorrow I'll prod speedtest.net and get it sorted.

[#7]

It's part of a number of ranges that were transferred to the Plusnet stable a few months ago.
David

[#8]

After digging through my emails, it turns out I contacted Maxmind last month to ask them to update their ISP detection for the following IP ranges:

217.32.32.0/20
217.32.112.0/22
217.32.148.0/22
217.32.152.0/21
217.32.160.0/22
217.32.176.0/22
217.39.16.0/20
217.39.112.0/20
217.45.24.0/21
217.45.96.0/20
217.46.24.0/22
217.46.128.0/20

Doesn't look like there's been any change though, so I've just raised a ticket with speedtest.net directly.