192168xx

192.168.x.x is a private IPv4 address range used inside local networks. It spans the block 192.168.0.0 through 192.168.255.255, a /16 allocation reserved by RFC 1918 for private networks. These addresses are not routed on the public Internet and can be reused in separate organizations without conflict.

In homes and small offices, devices typically receive addresses in this range from a router’s DHCP server. The router itself often uses a private address such as 192.168.1.1 or 192.168.0.1 as the default gateway. Clients may obtain addresses automatically (via DHCP) or be configured manually within the same subnet, for example 192.168.1.100 or 192.168.0.50.

Subnetting within the 192.168.x.x space usually employs a 255.255.255.0 (/24) mask, creating networks such as 192.168.1.0/24 with up to 254 usable addresses. Some networks use a larger or smaller subnet, such as 192.168.0.0/16, but /24 subnets are most common in consumer setups.

Because these addresses are private, devices with 192.168.x.x addresses rely on Network Address Translation (NAT) to access the Internet. Public reachability to a device inside a private network requires techniques like port forwarding, a VPN, or other remote access methods. Address conflicts can occur when multiple private networks are connected to the Internet, but they do not conflict in their local contexts.

The 192.168.x.x prefix is widely used in consumer and small-business networking. While there is no single universal default, common patterns include 192.168.0.0/24 or 192.168.1.0/24 with gateways at .1, reflecting typical router configurations.