Given an IP, how to find other IP blocks of the same owner

Ulysses_ · 09-11-2009, 03:47 PM

Given an IP, one can go to a site like the one below and do a SmartWhoIs lookup.

http://www.all-nettools.com/toolbox/smart-whois.php.

For example one IP of google is 74.125.45.100, and the SmartWhoIs lookup for this returns the following IP block:

google.com (74.125.45.100)
74.125.0.0 - 74.125.255.255
Google Inc. 1600 Amphitheatre Parkway Mountain View, CA US.

How do I find the other IP blocks allocated to Google Inc (or any other owner) automatically by typing the IP or company name somewhere?

hw-tph · 09-12-2009, 03:17 AM

Try Netcraft.

Ulysses_ · 09-12-2009, 03:09 PM

Quote:

Originally Posted by hw-tph

Try Netcraft.

I can't find anything there, you've seen something? Where do I type company name?

hw-tph · 09-13-2009, 01:32 AM

Sorry, upon re-reading your post I realize I misinterpreted your question. I thought you wanted to know what domains were tied to a certain netblock.

routers · 09-13-2009, 06:19 AM

Ulysses_

you can use whois command in konsole

eg, whois

Code:

[noc@nc ~]$ whois 74.125.45.100
[Querying whois.arin.net]
[whois.arin.net]

OrgName:    Google Inc.
OrgID:      GOGL
Address:    1600 Amphitheatre Parkway
City:       Mountain View
StateProv:  CA
PostalCode: 94043
Country:    US

NetRange:   74.125.0.0 - 74.125.255.255
CIDR:       74.125.0.0/16
NetName:    GOOGLE
NetHandle:  NET-74-125-0-0-1
Parent:     NET-74-0-0-0-0
NetType:    Direct Allocation
NameServer: NS1.GOOGLE.COM

another

Code:

[noc@nc ~]$ whois 216.239.34.10
[Querying whois.arin.net]
[whois.arin.net]

OrgName:    Google Inc.
OrgID:      GOGL
Address:    1600 Amphitheatre Parkway
City:       Mountain View
StateProv:  CA
PostalCode: 94043
Country:    US

NetRange:   216.239.32.0 - 216.239.63.255
CIDR:       216.239.32.0/19
NetName:    GOOGLE

Ulysses_ · 09-13-2009, 03:48 PM

But this is even less than the SmartWhoIs I mentioned in the first post. I don't want just the ip block an ip belongs to, that I have already. I want all the ip blocks that belong to the same company.

routers · 09-14-2009, 04:41 AM

yes. if u just see the thing i paste here
but in the real thing from the whois is much more, try yourself
in the konsole because , i just paste half of the info