Private IP vs Public IP Explained Simply (2026) — What’s the Difference?
Private IP vs Public IP Explained Simply (2026) — What’s the Difference?
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In this video, we explain the difference between private IP addresses and public IP addresses in a simple beginner-friendly way.
Your phone, laptop, smart TV, printer, or gaming console usually has a private IP address inside your home, school, or business network. But when your device connects to the internet, websites usually do not see that private IP directly. Instead, your router uses a public IP address from your internet service provider.
The simple difference is:
Private IP addresses are used inside local networks.
Public IP addresses are used on the internet.
What You’ll Learn
What an IP address does
What a private IP address is
What a public IP address is
Why private IPs are used in homes, schools, and businesses
Why public IPs are used on the internet
Why private IP addresses cannot be routed directly on the public internet
The common private IP address ranges
Why private IPs can be reused in different networks
Why public IPs must be globally unique
How routers connect private networks to the internet
Why private vs public IP is important before learning NAT
Common Private IP Ranges
10.0.0.0 to 10.255.255.255
172.16.0.0 to 172.31.255.255
192.168.0.0 to 192.168.255.255
Private and public IP addresses are one of the most important beginner networking concepts. Understanding this difference will help you understand home networks, business networks, routers, DHCP, DNS, default gateways, NAT, and how devices reach the internet.
By the end of this video, you’ll understand why your device has a private IP inside your network, why your router has a public IP on the internet side, and why NAT is needed to connect the two.
Related Topics
IP Address Explained
Private IP Address
Public IP Address
DHCP Explained
DNS Explained
Default Gateway
NAT Explained
Home Networking
Internet Basics
CCNA Fundamentals
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