Question : How can I find out who owns an IP range?

How can I find out who owns an IP range?

Answer : How can I find out who owns an IP range?

Do a traceroute and lookup the last router ip address which should be inside the same network.

Tracing route to 207.46.211.124 over a maximum of 30 hops

  1    <1 ms    <1 ms    <1 ms  192.168.0.1
  6    39 ms    40 ms    40 ms  so-3-0-0.XR2.LND2.ALTER.NET [158.43.233.110]
  7    36 ms    37 ms    36 ms  so-3-0-0.TL1.LND2.ALTER.NET [146.188.7.230]
  8   121 ms   115 ms   114 ms  so-0-2-0.IL1.NYC12.ALTER.NET [146.188.15.125]
  9   115 ms   118 ms   115 ms  0.so-7-0-0.IL3.NYC9.ALTER.NET [146.188.15.6]
 10   210 ms   207 ms   208 ms  0.so-7-0-0.XL1.SEA4.ALTER.NET [152.63.104.194]
 11   209 ms   207 ms   205 ms  0.so-6-0-0.GW1.SEA4.ALTER.NET [152.63.107.249]
 12   199 ms   199 ms   199 ms  msft-oc48.customer.alter.net [157.130.177.254]
 13   200 ms   203 ms   202 ms  ge-5-2-0-55.tuk-64cb-1b.ntwk.msn.net [207.46.41.
53]
 14   208 ms   207 ms   207 ms  ten1-1.tuk-76c-1b.ntwk.msn.net [207.46.35.69]
 15   201 ms   201 ms   200 ms  po1.tuk-6ns-mcs-2b.ntwk.msn.net [207.46.39.45]
 16     *        *        *     Request timed out.
 17     *     po1.tuk-6ns-mcs-2b.ntwk.msn.net [207.46.39.45]  reports: Destinati
on net unreachable.

Trace complete.


If you reverse lookup that last router 207.46.39.45

Results
207.46.39.45 resolves to
"po1.tuk-6ns-mcs-2b.ntwk.msn.net"
Top Level Domain: "msn.net"


Which belongs to Microsoft so checks out.

Jess