A subnetwork or subnet is a logical subdivision of an IP network. The practice of dividing a network into two or more networks is called subnetting. This results in the logical division of an IP address into two fields: the network number or routing prefix and the rest field or host identifier.

How do I find my IP range?

Running ipconfig on a Windows PC
Click the Start menu.In Search/Run bar, type cmd or command, then press Enter. In the Command Prompt, type ipconfig or ipconfig/all, then press Enter. Using the available IP range determined by your router, run a ping command to an address in that range to confirm it is free for use.

The `/16′ means that the first 16 binary digits is the network address, in other words, the `1.2. ‘ part is the the network (remember: each digit represents 8 binary digits). This means any IP address beginning with `1.2.

What does 29 mean in IP address?

/29 means that 29 of the 32 bits of the address are the netmask, therefore, only 3 bits are available for differentiating between computers.

By even casual observation, you’ll likely have noticed that there are several IP address ranges that are special, including:
10.0. 0.0/8 (10.0. 0.0 – 10.255. 255.255)172.16. 0.0/12 (172.16. 0.0 – 172.31. 255.255)192.168. 0.0/16 (192.168. 0.0 – 192.168. 255.255)