IP Address
An IP address is a unique number assigned to every device connected to the internet. It works like a digital home address: websites and online services use it to know where to send information back. Without an IP address, data simply would not know where to go.
How it works
Every time you open a website, your device sends a request through your internet provider. The website must know where to return the information — and your IP address is what makes that possible. It is the essential identifier that allows communication between devices.
Types of IP Addresses
There are two main types:
Public IP — the address visible on the internet.
Private IP — addresses used inside your home network (your Wi-Fi, phone, PC).
IPv4 and IPv6
Old addresses follow the IPv4 format, like 192.168.1.1. As the internet grew, there were not enough IPv4 addresses, so IPv6 was created — a much larger system that looks like 2400:cb00:2048:1::c629.
Does an IP reveal personal identity?
Not exactly. An IP address does not show your name or home address. However, it can reveal your approximate city, region, and internet provider. This is one of the reasons why many people use VPNs — they replace your public IP with a different one.
A simple example
Imagine sending a package without writing the destination address. It would never arrive. The internet works the same way: without an IP address, information has nowhere to be delivered.
When does your IP change?
Your IP can change if you restart your Wi-Fi router, switch from Wi-Fi to mobile internet, or if your provider updates the connection. This is normal and happens for most users.
Related terms
- What is DNS?
- What is a Router?
- What is VPN?
Source
Information simplified from the Wikipedia article “IP address”.