Your Public IPv4 is:

What Is My Public IP Address?

A public IP address is the Internet Protocol address that is logged by various servers/devices when you connect to them through your internet connection. This is the same IP address that we show on our homepage. So why the secondary page? Well, not everyone speaks the language of IP addresses so we want to make it as simple as possible for everyone to find the information they need. Some even refer to this as their external IP address. Again, it's the same IP we show on our homepage just referred to as something different. Sort of like thingamajig. 🙂

Two devices with the same public or external IP address cannot exist on the internet. This addressing scheme has the ability for each of the devices to locate each other while online and ultimately exchange information.  You really have no control over the Internet Protocol address assigned to each of your devices. The public IP address is assigned to the device by the Internet Service Provider as soon as the device has connection to the Internet.

How Is This Used When Connecting to Internet

As stated above the public Internet Protocol address is an Internet Protocol address accessed over the Internet. Like a postal address used to deliver a postal mail to your home, a public Internet Protocol address is the globally unique Internet Protocol address assigned to a computing device. A web server, email server and any server device directly accessible from the Internet are candidate for a public Internet Protocol address. A public Internet Protocol address is globally unique, and only assigned to a unique device.

The are two types of Internet Protocol (IP) addresses: Public and Private.  As defined above what a public IP address it, but to clarify, a private IP address assigned to devices within your private space without letting them directly exposed to the Internet.