Free CIDR/Subnet Calculator

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Homepage.............................paige.bio
PGP..............................paige.bio/pgp
Keybase..................keybase.io/iampaigeat
LinkedIn............linkedin.com/in/IAmPaigeAT
GitHub...........github.com/paigeadelethompson
Matrix..................@IAmPaigeAT:matrix.org
E-mail................paige [at] paige [.] bio
Mastadon...........IAmPaigeAT@infosec.exchange
Telephone......................+1-206-946-2468
Twitter.............................IAmPaigeAT
Launchpad............launchpad.net/~iampaigeat
YouTube................youtube.com/@IAmPaigeAT
GitLab...................gitlab.com/IAmPaigeAT
Discord.............................IAmPaigeAT
PyPI..................pypi.org/user/IAmPaigeAT
NPM......................npmjs.com/~iampaigeat
Docker.............hub.docker.com/u/paigeadele
Debian.............salsa.debian.org/IAmPaigeAT
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Free CIDR/Subnet Calculator

Author: Paige

Created: 2023-07-08

Tools

CIDR

Ipv4

Ipv6

CIDR Calculator

CIDR (Classless Inter-Domain Routing) notation is a compact method for specifying IP addresses and their associated routing prefix. This calculator helps you determine the network range, broadcast address, and total number of usable addresses for any given CIDR block.

Enter an IPv4 address in CIDR notation (e.g., 192.168.0.0/24) or an IPv6 address (e.g., fc00:f::/64) to calculate the start address, end address, and total available addresses in the subnet. The calculator also automatically identifies the address type (private, link-local, global, etc.) based on reserved IP address ranges.