My ISP is Blueyonder in the UK and they assign a random IP address
from their range on a daily basis.

The range they have given me is:

62.*
80.*
82.* 

But it would be good to narrow it down :)

So far, the ranges I've found are:

62.30.0.0 - 62.30.7.255
62.31.176.0 - 62.31.191.255 
80.195.0.0 - 80.195.31.255

But I need to know the others as well!

Thanks in advance

Trevor

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Request for Question Clarification by rainbow-ga on 06 Jan 2006 09:18 PST

Please take a look at this search result and let me know if it answers
your question:

http://www.senderbase.org/search?searchString=blueyonder.co.uk+

Best regards,
Rainbow

---

Clarification of Question by trevor92-ga on 06 Jan 2006 10:09 PST

Hi

Thanks for the question.

I was looking for ranges rather than individual IP addresses.

For instance, the Ripe query
http://ripe.net/fcgi-bin/whois?form_type=simple&full_query_string=&searchtext=62.30.0.0

shows the range of 62.30.0.0 - 62.30.7.255

But I know there are other ranges (such as the other two shown in the
question) that are also potentially used by Blueyonder.

Trevor

Hello.

BlueYonder in ISP terminology is BGP ASN 5462.
That's show on this page.
http://www2.linx.net/members/index-by-asn.thtml
(search for 5462)

There's an internet tool called "routeviews" where you can telnet in
to a route table only router (no traffic) and look at the real live
internet routing table.
http://www.routeviews.org/

I went there any typed this:
route-views.oregon-ix.net>sh ip bgp regex 5462$

Which means: Show me all the routes originating from ASN 5462.

I cleaned up the output (there are lots of parallel paths) and you get this:
(a complete list of BlueYonder IP addresses)

62.30.0.0/15     
80.192.0.0/14    
80.235.128.0/17  
80.244.0.0/24    
80.244.1.0/24    
82.32.0.0/12     
84.19.56.0/21    
84.19.60.0/23    
85.31.168.0/24   
156.61.0.0       
192.68.151.0     
192.149.117.0    
193.32.114.0
193.35.232.0/21  
193.35.238.0
193.35.239.0
193.36.232.0
193.38.64.0/18   
193.39.32.0/19   
193.193.97.0     
193.193.99.0     
193.193.104.0    
193.193.106.0    
193.193.108.0    
193.193.112.0    
193.193.113.0    
193.193.121.0    
193.193.122.0    
193.193.123.0    
193.201.124.0/23 
194.29.216.0/21
194.61.90.0      
194.117.128.0/19 
195.188.0.0/16   
195.188.32.0/21  
212.24.64.0/19   
212.86.64.0/19
213.48.0.0/16    
213.148.32.0/19  

This is what's known as CIDR notation for the IP address ranges.  
CIDR is a bitwise hash.
(for blocks above without a /X, assume /24)

I hope you can read CIDR.
If you can't, than read this page:
http://compnetworking.about.com/od/workingwithipaddresses/l/aa021003a.htm

With respect to your original inquiry, I'll decode the 62.*, 80.* and
82.* ranges...

62.30.0.0/15  (think 512 class Cs or 2 class Bs)
== 62.30.0.0 - 32.31.255.255

80.192.0.0/14 (think 1024 class Cs or 4 class Bs )
== 80.192.0.0 - 80.195.255.255

80.235.128.0/17  (think 128 class Cs)
== 80.235.128.0 - 80.235.255.255

80.244.0.0/24    (one class C)
== 80.244.0.0 - 80.244.0.255

80.244.1.0/24    (one class C)
== 80.244.1.0 - 80.244.1.255

82.32.0.0/12  (4096 class Cs or 16 class Bs!  BIG BLOCK!)
== 82.32.0.0 -- 82.47.255.255

I hope this is useful to you.