What is an IP Address?

An Internet protocol (IP) address is a unique number, much like your street address, that uses commas and periods to identify a device accessing the Internet. Your personal desktop, laptop, tablet, and smartphone each have a different IP address each time you log on. Each of your business devices may have its own static address that doesn’t change.


Consider the IP address “”. In this example:

“192” represents the first octet.
“168” represents the second octet.
“0” represents the third octet.
“1” represents the fourth octet.
Each octet can range from 0 to 255. Therefore, the IP address “” is an example of an IPv4 address, which is the most commonly used version of IP addresses.

In a network scenario, this IP address could be assigned to a router or a device such as a computer, printer, or smartphone. It allows data packets to be sent and received between devices on the same network or across different networks connected to the internet.

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