What 192.168.1.0/24 is
192.168.1.0/24 is one /24 inside the private range 192.168.0.0/16 (RFC 1918). Addresses in it are not routed on the Internet; your router translates them to its public IP with NAT.
The usual layout: the router is 192.168.1.1, DHCP hands out something like 192.168.1.100 to 192.168.1.199, and 192.168.1.255 is the broadcast address.
Who uses it
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Home routers
Many Linksys, Netgear, Asus and TP-Link models ship with 192.168.1.1 as the LAN address (defaults vary by model and ISP firmware).
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Small offices
Small businesses often keep the router default rather than planning an address scheme, so 192.168.1.0/24 is everywhere.
Conflicts and gotchas
- Remote-access VPNs. If the office LAN is 192.168.1.0/24 and an employee's home LAN is too, traffic to office servers never enters the VPN — the laptop thinks they're local. This is the number one reason to not use 192.168.1.0/24 for a business network.
- Site-to-site VPNs. Two sites with the same subnet cannot be routed to each other without NAT. Check before you connect with the overlap checker.
- Double NAT. If the ISP's modem-router already uses 192.168.1.0/24 and you plug in your own router with the same default, the WAN and LAN sides collide and nothing works. Change one of them, for example to 192.168.50.0/24.
How to split 192.168.1.0/24
Worked example: into /25s
- Going from /24 to /25 borrows 25 − 24 = 1 bit from the host part.
- Each borrowed bit doubles the number of subnets: 21 = 2 subnets.
- Each /25 keeps 32 − 25 = 7 host bits: 27 = 128 addresses, so 126 usable after removing network and broadcast.
- The new mask is 255.255.255.128, so subnets step by 128 in the fourth octet: 192.168.1.0/25, 192.168.1.128/25 up to 192.168.1.128/25.
| Split into | Subnets | Usable each | First blocks | Good for |
|---|---|---|---|---|
| /25 | 2 | 126 | 192.168.1.0/25, 192.168.1.128/25 | Two halves: e.g. main network and guest Wi-Fi. |
| /26 | 4 | 62 | 192.168.1.0/26, 192.168.1.64/26, … | Four VLANs: users, Wi-Fi, IoT, cameras. |
| /27 | 8 | 30 | 192.168.1.0/27, 192.168.1.32/27, … | Eight small VLANs for a home lab. |
192.168.1.0/24 FAQ
What is the range of 192.168.1.0/24?
192.168.1.0 to 192.168.1.255. Usable hosts are 192.168.1.1 to 192.168.1.254.
Is 192.168.1.0/24 public or private?
Private. It is part of 192.168.0.0/16, reserved by RFC 1918 for private networks.
Should I change my network away from 192.168.1.0/24?
If you use a VPN to work or connect to other sites, yes. Pick something less common like 192.168.73.0/24 or a block from 10.0.0.0/8 to avoid clashes.
Related tools
Other well-known networks: 10.0.0.0/24, 10.0.0.0/8, 100.64.0.0/10, 127.0.0.0/8, 169.254.0.0/16, 172.16.0.0/12, 172.17.0.0/16, 192.168.0.0/16, 192.168.0.0/24 · all networks