World IPv6 day

In order to communicate over the Internet, computers and other devices must have sender and receiver addresses. These numeric addresses are known as Internet Protocol addresses. As the Internet and the number of people using it grows exponentially, so does the need for IP addresses.

Google, Facebook, Mozilla, YouTube, Bing and other prominent web companies will test drive the IPv6 addresses on their websites for a 24-hour period to see what it can handle and what still needs to be done to get the world switched over to the new network.

The traditional IP Addresses (IPv4) uses a 32-bit number to represent an IP address, and it defines both network and host address. Due to IPv4 addresses running out, a new version of the IP protocol (IPv6) has been invented to offer virtually limitless number of unique addresses.

An IPv4 address is written in "dotted decimal" notation, which is 4 sets of numbers (octet) separated by period each set representing 8-bit number ranging from (0-255). An example of IPv4 address is which is equivalent to 11011000.00011011.00111101.10001001 in binary form.

Unlike the IPv4 addresses which are 32 bits long, written in decimal, and separated by periods, 
IPv6 addresses are 128 bits long, written in hexadecimal (0-9 & A-F), and separated by colons.
It will allow more users and devices to communicate on the Internet by using bigger numbers to create IP addresses by allowing for approximately three hundred and forty trillion, trillion unique IP addresses.

An example would be:

Colons separate 16-bit fields (16 * 8 = 128).

To test your IPv6 connectivity, you can visit

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