Public vs Private IP Addresses: What's the Difference?

NetWork From Home • September 18, 2025
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NetWork From Home

@network-from-home

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At NetWork from Home, my goal is to help everyone get the most out of their home internet connections. I will break down the technical concepts surrounding home networks so you are comfortable making decisions that maximize your internet connection and allow you to safely access the internet.

Video Description

In this video, I explain the difference between private and public IP addresses, and in what situations each type of IP address is used. Check out some of my previous videos that are related to this one: IP Addresses Explained: What They Are and How They're Assigned: https://youtu.be/lPPYc_sFLKo Network Address Translation: How NAT Protects your devices: https://youtu.be/E_P0cMMVnCU For more content on similar topics, check out my YouTube channel: https://www.youtube.com/channel/UCs-hXDMwqs1Ri9Yh9QRgaqQ If you would like to read about other ways to improve your home network, check out my blog: https://www.network-from-home.com 0:26 Why do we have private and public IP addresses? 1:11 What is the difference between public and private IP addresses? 5:55 How are private and public IPs used together? This post contains affiliate links. This means I may earn a commission should you choose to sign up for a program or make a purchase using my link. Equipment I used in this video: 🎥: https://amzn.to/43POu01 🎙️: https://amzn.to/4kU1SXU What is the difference between private and public IP addresses? Both private and public IP addresses accomplish the same thing: they allow devices to communicate with each other. The difference between these two types of addresses is the types of devices that they allow to communicate. The most important factors of private and public IP addresses are as follows: Private IP addresses: Devices that are assigned private IP addresses are not accessible by the devices on the public internet. In other words, devices with private IP addresses can only communicate directly with other devices that have private IP addresses. Private IP addresses are used in home and office networks, and their purpose is to limit the number of public IPv4 addresses used by a home or business. There are a limited number of public IPv4 addresses that are available, and this is the reason why private IPv4 addresses were developed in the first place. Public IP addresses: Public IP addresses are used for devices that are accessible on the public internet. A device that’s assigned a public IP address can be accessed by any device that has a connection to the internet. The best example for where public IP addresses are used is when they are assigned to websites. Websites are public resources that are accessible by anyone with a connection to the internet, and the public IP address they’re assigned is how you access your favorite websites. Even though there are a limited number of public IPv4 addresses, another type of IP address (called IPv6) has been developed to ensure we don’t run out of public IP addresses as the internet continues to grow at unprecedented rates. Conclusion If you have any questions about private and public IP addresses or how they work, please leave a comment below.

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