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List of BT Internet IP Ranges
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Gordon
Sun Apr 20 2008, 09:49PM
Registered Member #287
Joined: Thu Apr 03 2008, 08:06PM
Posts: 377
 I think you'd better include some sort of "Don't hold me responsible for any cock-ups" notice to cover us both, but, yes, please feel free!
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Gordon
Mon Apr 21 2008, 12:00AM
Registered Member #287
Joined: Thu Apr 03 2008, 08:06PM
Posts: 377
 PhormalWarning - thanks, I had a whizz through yours and I've missed both those eu.bt.net ranges that you listed:
166.49.128.0 166.49.255.255 eu.bt.net
212.127.0.0 212.127.20.255 eu.bt.net

...but on checking them, the second one seems to be:
212.127.0.0 212.127.31.255

...so I've added:
deny from 166.49.128.0/17
deny from 212.127.0.0/19

...in my .htacess file.

Cheers. :)
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felixcatuk
Mon Apr 21 2008, 11:21AM
felixcatuk


Registered Member #95
Joined: Wed Mar 05 2008, 12:03AM
Posts: 2593
 I'll propagate to the Dephormation site.

Any chance you could do something similar for Virgin Media? Or Talk Talk?
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Gleneagles
Mon Apr 21 2008, 04:11PM
Registered Member #124
Joined: Fri Mar 07 2008, 06:53PM
Posts: 52
 Guys, just to hopefully help fill in any blanks.

I switched from BT BB to Post Office (not exactly a great switch I know, but still...)

I'm currently connected with the leased address in the 81.141.x.x range, labelled as WLMS. Also going through BT's core kit too as the following tracert shows.

Tracing route to bbc.co.uk [212.58.224.131]
over a maximum of 30 hops:

1 2 ms 2 ms 1 ms www.routerlogin.com [192.168.0.1]
2 38 ms 28 ms 26 ms 217.47.71.58
3 29 ms 26 ms 28 ms 217.47.71.161
4 29 ms 29 ms 27 ms 217.47.71.177
5 25 ms 27 ms 24 ms core1-pos6-2.kingston.ukcore.bt.net [62.6.40.241
]
6 31 ms 27 ms 28 ms core2-pos1-0-0-0.telehouse.ukcore.bt.net [194.74
.65.121]
7 28 ms 28 ms 26 ms core1-pos5-0-0.telehouse.ukcore.bt.net [194.74.6
5.122]
8 27 ms 27 ms 28 ms 194.74.65.6
9 29 ms 28 ms 28 ms 212.58.238.153
10 28 ms 29 ms 29 ms rdirwww-vip.thdo.bbc.co.uk [212.58.224.131]

Trace complete.

Obviously i'll be watching my connection very closely just to make sure.
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PhormalWarning
Mon Apr 21 2008, 08:17PM
Registered Member #242
Joined: Sun Mar 23 2008, 03:59PM
Posts: 31
 Hi Gordon,

Yes you're absolutely right there are more BT blocks in the 212.127.* range, however I'd disagree on a couple:

212.127.21.* I don't think is assigned to anybody.
212.127.22 - 28 = BT
212.127.29.* = Gartner group.
212.127.30 - 31 = BT

I've been doing some checks on your list:

62.* stuff looks good. A lot I've missed there.

83.170.128.0-83.170.163.255 - I think this might be an error. There are a load of IntelSat blocks and blocks I couldn't identify.

193.37.160.0-193.37.175.255 &
195.218.32.0-195.218.63.255 - Couldn't see anything here. Are these BT?

Maybe I'm going soft but I reckon including PlusNet is a bit harsh. PlusNet's marketing bloke said "Phorm is not on our network and we have no plans to allow it on our servers."

I found PlusNet and related ISPs at:

80.229.*
81.174.*
83.216.* block which are Parbin and Metronet (PlusNet companies).
84.51.* Parbin and Metronet
84.92.0.0-84.93.255.255
195.166.128.0-195.166.159.255


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PhormalWarning
Mon Apr 21 2008, 08:21PM
Registered Member #242
Joined: Sun Mar 23 2008, 03:59PM
Posts: 31
Gleneagles wrote ...

I'm currently connected with the leased address in the 81.141.x.x range, labelled as WLMS. Also going through BT's core kit too as the following tracert shows.


That's useful thanks. I reckon that's a good argument not to block the WLMS range. BT wouldn't Phorm other ISPs who outsource to them without permission. It would be commercial suicide.
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claire_rand
Mon Apr 21 2008, 09:48PM
Registered Member #173
Joined: Wed Mar 12 2008, 08:49PM
Posts: 55
 >> BT wouldn't Phorm other ISPs who outsource to them without permission. It would be commercial suicide.

of course if phorm is allowed to be rolled out there is basically nothing stopping them. where are the ISPs going to go if they don't like it?

all it needs is for this sort of rubbish monitoring/scraping software to be deemed to 'fight terrorists' or 'protect children' (who cares if it does neither) and it may even be mandated by legislation let alone 'allowed'

BT are big, BT have lawyers, they won't do it until they get clear direction that this is legal, and legal do to without changing T&C 'significantly' to break contracts.

or they will just find a way to force new contracts out, e.g. change in technology if you want it, sign here.
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Gordon
Mon Apr 21 2008, 09:50PM
Registered Member #287
Joined: Thu Apr 03 2008, 08:06PM
Posts: 377
 I'll do this in bits or I'll get totally confused - I find it hard enough to decipher some of the entries in the first place! :)
The 212.127 stuff first...
-------------------------------
212.127.21.* I don't think is assigned to anybody.
212.127.22 - 28 = BT
212.127.29.* = Gartner group.
212.127.30 - 31 = BT
-------------------------------
212.127.21.0-212.127.21.255, according the RIPE database, is Sega Europe Ltd., but if you read through the info, lower down you come to a reference to BT Global Networks.
You can get different answers using different random numbers, and what I usually do when it's lots of itty-bitty ones is try and find a number that actually shows the range.
For example, if I put in 212.127.22.0, it says...
inetnum: 212.127.0.0 - 212.127.31.255
refers to it as "Communications Networking Services", and gives a "BT Nederland n.v." Amsterdam address.
So, maybe I'm getting the wrong end of the stick, but to me that says that this whole range belongs to BT.
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Gordon
Mon Apr 21 2008, 10:00PM
Registered Member #287
Joined: Thu Apr 03 2008, 08:06PM
Posts: 377
 The IntelSat bit...
------------------------------------------
83.170.128.0-83.170.163.255 - I think this might be an error. There are a load of IntelSat blocks and blocks I couldn't identify.
------------------------------------------
Yes, they seem to be IntelSat, but...
"descr: Reassignment to BT Broadband customer"

I don't have a clue what that actually means, but, as I said, I wasn't too fussy - if it looks like BT to me, it's on my list.
Other than the obvious standard BT big blocks, I found it a bit of a nightmare trying to figure it out in places - if you understand what that means and it's *not* tied up with BT, fine, I'll kill that one.
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Gordon
Mon Apr 21 2008, 10:08PM
Registered Member #287
Joined: Thu Apr 03 2008, 08:06PM
Posts: 377
 Next bit
------------------------
193.37.160.0-193.37.175.255 &
195.218.32.0-195.218.63.255 - Couldn't see anything here. Are these BT?
------------------------
193.37.160.0-193.37.175.255 shows:
"descr: British Telecom Tymnet Europe"

195.218.32.0-195.218.63.255 shows:
"descr: British Telecom"

So, yes, they do seem to be BT.
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