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What private IP means
A private IP is an address reserved for internal network use. That means it identifies devices inside a home, office or local network, but it is not routed directly over the Internet.
When your laptop connects to Wi-Fi, when a printer receives jobs from a PC, or when a NAS shares files, that usually happens using private IPs.
Key idea: a private IP lives inside the local network. The one the Internet sees is different: the public IP.
What the private IP ranges are
Private IPs cannot be just any address. There are three reserved blocks for internal use:
- 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
Valid private IP examples:
192.168.1.23
192.168.0.15
10.0.0.8
172.16.5.22In homes and small offices, the most common addresses are the ones starting with 192.168.
What a private IP is used for
It is used so that devices inside the same network can communicate with each other. Without a private IP, your router would not know which device to send data to, and devices would not be able to find each other inside the network.
PC and laptop
They allow internal network sharing, files, printers and other local resources.
Phones and tablets
They receive a private IP when they connect to home or office Wi-Fi.
Printers and NAS
They use a private IP so you can reach them from other devices on the network.
Router
It also has a private IP inside the local network and acts as the central point.
In practice, when someone says local IP, they are often referring to a private IP.
What role the router plays with private IPs
The router is usually the device that hands out private IPs inside the network through DHCP. It also has its own private address that acts as the entry point of the local network.
- Many routers use 192.168.1.1
- Others use 192.168.0.1
- Some use 10.0.0.1
If you want to understand this better, this guide fits perfectly: Router local IP.
Difference between private IP and public IP
This is the most important distinction. A private IP works inside your network. A public IP is the address your connection uses toward the outside Internet.
Private IP
It identifies devices inside your local network. It is not used directly on the Internet.
Public IP
It is the address visible from the Internet and it is usually shared by your whole network through the router.
If you want the full comparison, also see: Local IP vs public IP.
Typical private IP examples
These are some very common private addresses:
Router: 192.168.1.1
Laptop: 192.168.1.23
Phone: 192.168.1.24
Printer: 192.168.1.50
NAS: 192.168.1.60All of them can exist inside the same network without any problem. The important thing is that two devices must not use the same address at the same time.
How to find your private IP
The way to see it depends on the device. On Windows, for example, you can use ipconfig. On iPhone or Android, you can see it from the current Wi-Fi network. In all cases, what you are usually looking for is the local IPv4.
- Open your device network settings.
- Look for the active network, Wi-Fi or Ethernet.
- Find the IPv4 address.
- If it looks like 192.168.x.x, 10.x.x.x or 172.16-31.x.x, it is a private IP.
These guides may help:
Frequently asked questions
What is a private IP?
It is an address used inside a local network to identify devices such as computers, phones, printers or routers.
What are the private IP ranges?
The main ones are 10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16.
Is a private IP the same as a local IP?
In practice, almost always yes on home networks. Both expressions usually refer to the internal device address.
Can a private IP be seen from the Internet?
Not directly. Private IPs are not routed over the Internet. Outward traffic usually uses a public IP on the router.
Does the router also have a private IP?
Yes. Inside the local network, the router usually has an IP such as 192.168.1.1 or 192.168.0.1.