192.168.0.0/16: private address space

192.168.0.0/16 is the smallest of the three private ranges reserved by RFC 1918, covering 192.168.0.0 to 192.168.255.255. Consumer routers almost always use it, typically carving out a single /24 such as 192.168.1.0/24 and keeping the .1 address for themselves.

A /16 you never see all of

The reservation is 65,536 addresses, but a home router does not hand out a /16. It configures one /24, gives itself the first or last usable address, and runs a DHCP pool over part of the rest. That is why a typical home network tops out at 254 devices, not 65,000, and why the third octet in your address is fixed at whatever the manufacturer chose.

Nothing stops you from configuring a wider mask. A router set to 192.168.0.0/22 would cover 192.168.0.0 through 192.168.3.255 in one broadcast domain, which is occasionally useful for a large house full of smart devices. Most consumer firmware allows the mask to be edited on the LAN settings page. Work out the boundaries first in /subnet-calculator.

The default subnet problem

192.168.1.0/24 and 192.168.0.0/24 are the two most heavily used networks on earth, and the collisions have consequences.

Connect to a corporate VPN from a home network on 192.168.1.0/24 when the office also uses 192.168.1.0/24, and your laptop has two plausible destinations for every address. Some VPN clients handle this by taking a more specific route, most simply break, and the symptom is that half the internal services are unreachable with no obvious pattern.

The fix takes two minutes and is worth doing before it matters. Change the LAN subnet in your router to something arbitrary in the middle of the range: 192.168.83.0/24, 192.168.147.0/24, anything nobody defaults to. Every device picks up the new addressing on its next DHCP renewal.

When you see it

• In ipconfig on Windows, ip addr on Linux, or the Wi-Fi details screen on a phone, as your device’s own address.
• As the default gateway in route print, ip route, or netstat -rn.
• On the label underneath a router, printed next to the default admin credentials.
• In printer and IoT setup screens that ask for a static address.
• In port forwarding rules, where the internal address of a game server or NAS is a 192.168 address.

Which address is the router

Common defaults, though every vendor has exceptions by model:

Address	Vendors that commonly use it
192.168.1.1	Linksys, ASUS, TP-Link on many models, Netgear
192.168.0.1	D-Link, TP-Link on other models, some Netgear
192.168.2.1	Some Belkin and SMC models
192.168.86.1	Google Nest Wifi and Google Wifi
192.168.178.1	AVM FRITZ!Box, common in Germany

Rather than guessing, read the default gateway from your own device. The find router IP guide covers each operating system.

What it is not

192.168.0.0/16 is not routable on the internet, so an address in it will never be your public IP and will never appear in a website’s logs for your visit. It is not a security boundary: NAT stops unsolicited inbound connections, and that is all it does. It is not unique either, so quoting your 192.168 address in a support forum tells nobody anything. And it is not the only choice for a home network, which is exactly the point of changing the default.