IP Tester

Target ip range not specified. Using default range: 131.91.0.0-131.91.255.255.
Target values:
  Start: 2203779072
   End: 2203844607

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Testing if IPs are in 131.91.0.0-131.91.255.255
The starting IP converted to long is 2203779072
The IP converted to long is              2203780956
The ending IP converted to long is  2203844607
131.91.7.92 is between the target values.

Usage

Url parameters:
range: Target IP range in the form of two full ips separated by dash
ip, ip2, ip3: As many as three ips can be entered for testing.
Sample url:
http://ethnologue.a2hosted.com/ipv6/index.php?ip=128.174.138.33&ip2=128.174.138.38&ip3=128.173.138.36&range=128.174.0.0-128.174.255.255


You can also try some IPv6 test pages that are in progress
IPTester.php
IPv6Test.php

IP Tester

The website uses a function called ip2long (v6 version) to convert the users\' ip addresses to long integers before storing them in the database.
In this instance what is stored is the starting ip (as a long) and the ending ip (again as a long). Then it can run a query to find out if an
incoming connection has an ip that is between the starting and ending values of any user in the system. This page tests whether an ip
is within a specified range.

Convert an IP Range to CIDR






IP Range Tester