Subnet mask calculator

With subnet mask you can split your network into subnets. Enter your IP address and play with the second netmask until the result matches your need.

This type of notation is also known as CIDR. CIDR (Classless Inter-Domain Routing, sometimes known as supernetting) is a way to allocate and specify the Internet addresses used in inter-domain routing more flexibly than with the original system of Internet Protocol (IP) address classes.

IP Address / Mask
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Results

Address: 54.161.192.135 00110110.10100001.11000000.10000111
Netmask: 255.255.255.255 11111111.11111111.11111111.11111111
Wildcard: 0.0.0.0 00000000.00000000.00000000.00000000
Network Address: 54.161.192.135 / 32 00110110.10100001.11000000.10000111
Broadcast Address: 54.161.192.135 00110110.10100001.11000000.10000111
First host: 54.161.192.135 00110110.10100001.11000000.10000111
Last host: 54.161.192.135 00110110.10100001.11000000.10000111
Total host count: 1

Term definitions

Wildcard: Inverse of netmask. Used by certain firewalls for access control list

Broadcast: IP broadcast addresses are used for single-packet one-to-everyone delivery. A sending host addresses the IP packet using a broadcast address and every node on the sending node's network segment receives and processes the packet. IP broadcast addresses can be used only as the destination IP address. IP routers do not forward network broadcast packets.


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