IP Range Lookup

Enter an IPv4 address with CIDR notation to calculate its network range, subnet mask and usable hosts.

Examples: 192.168.1.0/24 · 10.0.0.0/8

IP Range Results

CIDR Range
192.168.1.0/24
IP Version
IPv4
Network Address
192.168.1.0
Broadcast Address
192.168.1.255
Subnet Mask
255.255.255.0
Wildcard Mask
0.0.0.255
First Usable IP
192.168.1.1
Last Usable IP
192.168.1.254
Total Addresses
256
Usable Addresses
254

IPv4 /31 networks are treated according to RFC 3021 for point-to-point links. A /32 represents a single IPv4 host.