Network calculator for subnet mask and other classless (CIDR) network information.

Convert CIDR blocks to constituent IP addresses

go implementation of ipcalc

🔨 List IP ranges of: Google, Bing, Amazon and Cloudfront, Microsoft, Azure, Oracle, DigitalOcean, GitHub, Facebook, Twitter, Linode, Yandex, Vkontakte, Telegram, Netflix, Steam, Spotify, ChatGPT, YouTube with regular auto-updates for Sing-Box (user rules) in srs.

Handy little script for reconciling IP Addresses to CIDR ranges - input/output CSV or CLI.

A subnet, or subnetwork, is a network inside a network. Subnets make networks more efficient. Through subnetting, network traffic can travel a shorter distance without passing through unnecessary routers to reach its destination.

Intelligently creates a redundant VPC network across availability zones with subnets gateways and routes to house any service eco-system.

Provides helper (extension)methods for working with IPNetworks

A modern, object-oriented TypeScript library for representing and performing arithmetic on IP addresses and subnets.

CIDR to IP range converter is an online tool that helps you convert CIDR notation into a list of individual IP addresses that are part of the specified range

Cisco Packet Tracer simulation demonstrating subnetting, IP allocation, and inter-subnet routing between multiple LANs.

A simple bash script to get the CIDR notation of a subnet mask.

Network topologies and protocols, subnetting

Generate reverse DNS (.IN-ADDR.ARPA) templates for a sub-/24 CIDR zone

Typescript implementation for using CIDR masks for address filtering.

A cross-process, memory-resident, lock-free-read LPM engine with per-prefix TTLs and tags; plus a tiny, language-agnostic C ABI.

🔌 IP subnet mask calculator with ranges, MIN and MAX host

An Intuitive and easy to use Subnet Calculator written in C#.

IP range to CIDR notation converter will helps you convert an IP range into a list of individual CIDR notation addresses that are part of the IP range

CidrPlan is a lightweight, browser-based IPv4 subnet planning tool that lets you interactively design and manage network address spaces. Split larger blocks into smaller subnets, merge them back together, name your networks, and export your plans in multiple formats—all without leaving your browser.