Gentoo: [more]
By enabling the HostInfo plugin in awstats, you get an extra column in the 'Hosts' table, which pops up a whois query when clicked.

awstats whois column

The whois record contains information like the organisation's name and address that owns the IP, the country, and contact details of the admin(s).

To get this working in awstats (to add this 'Info' column):

• Uncomment (or add) the

  LoadPlugin="hostinfo"

  line in the awstats config file for the domain of interest.

• Make sure the Net/XWhois Perl Module is available. On gentoo:

  emerge Net-XWhois

Gentoo: [more]

These are found in

net-dns/bind-tools

$ sudo emerge bind-tools

You probably also want whois:

$ sudo emerge whois

Do a:

$ emerge --search whois

There are a few alternatives. Enjoy!

http://gentoo-portage.com/net-dns/bind-tools

VOIP + Data switches: (AaronK)

Reverse deps (required by these packages):