IP Address Basics
An IP address (Internet Protocol address) is a numerical label assigned to every device connected to a computer network that uses the Internet Protocol for communication. Think of it as your device's postal address on the internet – it tells other computers where to send data.
Without IP addresses, devices would not be able to find each other on the internet. Every time you visit a website, send an email, or stream a video, IP addresses are working in the background to ensure the data reaches the right destination.
How Does an IP Address Work?
When you connect to the internet, your Internet Service Provider (ISP) assigns your device an IP address. This address is used to:
- Identify your device – Distinguish your device from billions of others online
- Enable communication – Allow data packets to find their way to and from your device
- Determine location – Provide approximate geographic location (usually city or region)
Types of IP Addresses
IPv4 vs IPv6
There are two versions of IP addresses in use today:
- IPv4 – The original format, using 32-bit addresses (e.g., 192.168.1.1). Limited to approximately 4.3 billion unique addresses.
- IPv6 – The newer format, using 128-bit addresses (e.g., 2001:0db8:85a3::8a2e:0370:7334). Provides virtually unlimited addresses.
Public vs Private IP Addresses
Public IP addresses are visible on the internet and assigned by your ISP. This is what VisaIP shows you.
Private IP addresses are used within local networks (like your home WiFi) and typically start with 192.168.x.x or 10.x.x.x. These are not visible on the internet.
Static vs Dynamic IP Addresses
Static IP addresses remain constant and are typically used by servers and businesses.
Dynamic IP addresses change periodically and are assigned automatically by your ISP. Most home users have dynamic IP addresses.
What Can Your IP Address Reveal?
Your IP address can reveal:
- Your approximate geographic location (city/region)
- Your Internet Service Provider
- Your connection type (residential, business, mobile)
Your IP address does not directly reveal your name, exact address, or other personal information.
Protecting Your IP Address
If you want to hide your IP address for privacy reasons, you can use:
- VPN (Virtual Private Network) – The most popular option for everyday use
- Tor Browser – Routes traffic through multiple servers for anonymity
- Proxy servers – Acts as an intermediary between you and the internet