192.168.0.0/16 IP Range
First and last address, mask and host count for 192.168.0.0/16.
The whole 192.168 private block, defined by RFC 1918 and never routed on the public internet.
| CIDR | 192.168.0.0/16 |
|---|---|
| Network address | 192.168.0.0 |
| Subnet mask | 255.255.0.0 |
| Wildcard mask | 0.0.255.255 |
| First usable IP | 192.168.0.1 |
| Last usable IP | 192.168.255.254 |
| Broadcast address | 192.168.255.255 |
| Total addresses | 65,536 |
| Usable hosts | 65,534 |
How it is used
Use it when you need many subnets, for example one /24 per VLAN or office floor. Individual home networks almost always use a single /24 from inside it. In a firewall rule this range is broad: it covers every 192.168.x.x address.
Allow this range in a firewall
sudo iptables -I INPUT 1 -p tcp -s 192.168.0.0/16 --dport 22 -j ACCEPT
This lets the whole range reach SSH. Change the port as needed, or build a complete rule set with the allow a port from specific IPs tool.
Calculate another range
Use the CIDR to IP range calculator for any other network.
FAQ
How many usable hosts are in 192.168.0.0/16?
65,534 usable addresses out of 65,536 total. The network and broadcast addresses are reserved.
How many /24 networks fit inside 192.168.0.0/16?
256 of them, from 192.168.0.0/24 to 192.168.255.0/24.
Is 192.168.0.0/16 a private range?
Yes. It belongs to the private address space defined in RFC 1918 and is not routed on the public internet.