#!/usr/bin/perl

use strict;
use warnings;

use Geo::IP;

# here we are using GeoIP ISP
my $gi
    = Geo::IP->open( "/usr/local/share/GeoIP/GeoIPISP.dat", GEOIP_STANDARD );

# uncomment for GeoIP Organization
#my $gi = Geo::IP->open("/usr/local/share/GeoIP/GeoIPOrg.dat", GEOIP_STANDARD);

# uncomment for GeoIP Domain Name
#my $gi = Geo::IP->open("/usr/local/share/GeoIP/GeoIPDomain.dat", GEOIP_STANDARD);

while (<DATA>) {
    chomp;
    my ($org) = $gi->org_by_name($_);
    my $netmask = $gi->last_netmask;
    print join( "\t", $_, $org, $netmask ) . "\n";
}

__DATA__
12.10.1.4
66.108.94.158
yahoo.com
amazon.com
4.2.144.64
24.24.24.24