netmask

Parse and lookup IP network blocks

v2.0.2 URL: https://unpkg.com/netmask@2.0.2/lib/netmask.js

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net mask ip network cidr netmask subnet ipcalc

private-ip

Check if IP address is private.

v3.0.2 URL: https://unpkg.com/private-ip@3.0.2/index.js

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ip ipv4 ipv6 address private netmask localhost lan

ip-toolkit

A utility library for manipulating IPv4 and IPv6 address in Node.js.

v1.0.20 URL: https://unpkg.com/ip-toolkit@1.0.20/dist/index.js

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ip ipv4 ipv6 cidr subnet netmask ip-cidr ip-addr ip-range ip-tools ip-address ip-library ip-utility ip-network

ip-sub

A set of utilities for IP/prefix validation and subnet matching.

v1.5.8 URL: https://unpkg.com/ip-sub@1.5.8/ipUtils.js

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ip prefix validation subnet netmask

ip-subnet-calculator

Calculate optimal subnet masks for standard and non-standard IP ranges

v2.0.1 URL: https://unpkg.com/ip-subnet-calculator@2.0.1/lib/ip-subnet-calculator.js

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ip subnet network netmask calculator mask