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As a developer or network engineer, you may need to occasionally look up subnet mask values and figure out what they mean. To make your life easier, the freeCodeCamp community has made this simple cheat sheet.
This calculator returns a variety of information regarding Internet Protocol version 4 (IPv4) and IPv6 subnets including possible network addresses, usable host ranges, subnet mask, and IP class, among others.
mask; 1: 0 /32: 255.255.255.255: 2: 1 /31: 255.255.255.254: 4: 2 /30: 255.255.255.252: 8: 3 /29: 255.255.255.248: 16: 4 /28: 255.255.255.240: 32: 5 /27: 255.255.255.224: 64: 6 /26: 255.255.255.192: 128: 7 /25: 255.255.255.128: 256: 8 /24: 1 c: 255.255.255 : 512: 9 /23: 2 c: 255.255.254 : 1 k: 10 /22: 4 c: 255.255.252 2 k: 11 /21: 8 c: 255.255. ...
A Subnet Mask Calculator is an essential tool for network administrators, IT professionals, and network engineers to perform crucial IP address subnetting tasks. It simplifies complex calculations by helping users compute IP ranges, broadcast addresses, subnet masks, CIDR notations, and usable host counts with ease.
The subnet mask 255.255.255.0 is 11111111.11111111.11111111.00000000 in binary. This adds up to 24 consecutive ones, or /24 (pronounced “slash twenty four”). A subnet mask of 255.255.255.192 is 11111111.11111111.11111111.11000000 in binary, or 26 ones, hence /26 .
Given an IP address and a subnet mask, this IP subnet calculator will show you everything you need to know about the network and IP address.
What is a subnet mask? A subnet mask is a 32-bit bitmask that splits an IP address into network and host sections to enable IPv4 network segmentation (a.k.a. subnetting). A lot is going on there, so let’s unpack it. I’ll introduce a few new terms as we go, but we’ll tie it all together at the end.
Instead, subnet masks accompany an IP address, and the two values work together. Applying the subnet mask to an IP address splits the address into two parts, an extended network address and a host address.
/26 subnet mask creates 4 subnets if we have a default subnet mask of /24. In case of network administrator wants more networks however host requirement is less per network then using /26 as a subnet mask will provide 4 networks with each subnet having 64 IP addresses.
Enter your subnet to get the subnet mask, wildcard mask, network/broadcast address, and number of assignable hosts. You can edit the results and save them on an IP address table and print them for reference.