IP address is a private IP address. In some cases, it could be a default IP address for routers. In that sense, it is similar to IP addresses such as or However, unlike these addresses, is more often used as the address for business computer networks than for home networks.

Private IP Addresses

IP addresses are used to locate and identify computers or any other devices which are connected to each other through some network. Most commonly, that network is the Internet. In early stages of the development ofIP addressing, it was thought that an IP address must be unique. However, with the development of private networks, it was found that this doesn’t need necessarily to be the case. The Public network (the Internet) still requires IP addresses to be unique ones, but private networks don’t require IP address to be globally unique.

This means that if your computer is connected to the Internet and through this network it communicates with some other devices than it has to have a unique IP address. On the other hand, if your computer is connected only to some local network than it doesn’t need to have a specific IP address that is not assigned to any other device. However, it needs a unique IP address within the local network that it is connected to. The very same IP address can be assigned to some other device which is connected to some other local network.

By using private IP addresses, public address space is conserved. Without the conception of private IP addresses, more IP addresses would be generally reserved and in that sense wasted.

Classification of Private IP Addresses

Because private IP addresses don’t need to be globally unique ones, certain ranges of IP address were reserved for that purpose. There are three ranges of these addresses that make three different classes.

  1. Class A starts with and ends with
  2. Class B starts with and ends with
  3. Class C starts with and ends with

So, there are three different ranges in three separated classes. Any IP address from any of these three ranges (classes) is a private IP address. The IP address which is the topic of this text, obviously fall within the range between and So it is A class private IP address.

The main difference between these classes is the ratio between networks and hosts. (Host could be any device to which IP address can be assigned.) Class A has a few networks but every of these network contains the big amount of host IP addresses. Class B has more networks than the class A. However, these networks possess fewer IP addresses but still, it is the significant number. Lastly, class C has many networks, but it doesn’t offer too many hosts.

Taking into consideration these characteristics of classes, it becomes obvious why is commonly used as the IP address for business computer networks. The whole class A is quite suitable for large corporations. Also, this class of IP addresses is used by Internet service providers (ISP).

Devices that Use

In most cases, is a private IP address for routers. As we already said, it is commonly used for some routers responsible for business computer networks. For some manufacturers of routers, is a default IP address.

What is a default IP address? The IP address is a default for a router if it is designed for that router by its manufacturer. Some Cisco routers or Comcast Infinity routers has as their default IP address. You are able to change router’s IP address with any other private one without any other changes. In other words, all settings will stay fixed if you change the IP address of your router. However, it is necessary to know default IP address in cases you initially setting up your router or you need to restart it.

Another name of default IP address of the router is ‘default gateway’. All devices within one network rely on the router if they communicate with some other devices in another network. For example, if your computer is connected to some local network than it isn’t connected directly to the Internet. However, it is connected to it only indirectly through the router. So, if you want to send some e-mail to some host outside your network than your computer sends this data to the IP address of the router and then the router sends it to the IP address of the receiver. In that sense, the IP address of the router (in our case it is is the gate through which devices from the local network can get access to the public network (the Internet) and consequently to any other host.In other words, all data intended to be sent outside the local network must pass through this ‘gate’. That is why default gateway of a router is so important.