[c-nsp] Which IP's belong to AS1234?

[Steve Natale]

On Fri, Sep 25, 2009 at 12:29:17AM -0700, Hector Herrera wrote:
> On Thu, Sep 24, 2009 at 11:55 PM, Andy Saykao
> <andy.saykao at staff.netspace.net.au> wrote:
> > This might be a silly question but is there a tool somewhere that will
> > give me a list of IP's that are owned by a particular AS.
> >
> > As an example, I might want to know which IP blocks belong to AS1234?
> >
> > Thanks.
> >
> > Andy
> 
> Have you tried robtex?
> 
> http://www.robtex.com/as/as1234.html#bgp
> 
> Hector

You can also query a RR directly.  This method may be helpful 
if you need to do something else with the data.  

whois -h whois.radb.net \!gas1234
A48
194.110.40.0/23 194.110.44.0/23 193.110.32.0/21
C

Steve Natale
IP Engineer
snatale at us.ntt.net
NTT Communications Global IP Network

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