Subnetwork vs CIDR

Subnetwork is a full-feature IPv4 subnet calculator that allows you to effortlessly calculate single subnets, Fixed Length Subnet Masks (FLSM) and Variable Length Subnet Masks (VLSM) using whatever IPv4 address and Classless Inter-Domain Routing (CIDR) notation you choose. Subnetting may be complicated and tedious, but that doesn't mean your user experience needs to be. Designed exclusively for iOS, Subnetwork is a native and intuitive networking tool for students and IT professionals alike. Subnet Calculator - Calculate the subnet mask, wildcard, network ID, host range, broadcast addresses and more with an IPv4 address and dynamically adjustable CIDR prefix. Fixed Length Subnet Mask (FLSM) Calculator - Instantly generate between 2 and 1028 FLSM subnets to meet your network and host requirements. Variable Length Subnet Mask (VLSM) Calculator - Instantly generate VLSM subnets to meet your custom host requirements and maximize your available address space. Simple and Powerful - View minimal subnet details in decimal notation, or rotate your device for full binary calculations across all modes. View basic information at a glance in FLSM or VLSM, or dive into the details with just one touch. The choice is yours. Save Support - Name, store, and retrieve your subnets for later use across all three calculator modes.

Calculate the IP address range from the IP address and subnet mask. It can be used to calculate IPv4 addresses, including prefix display, number of address ranges, and bit notation. CIDR calculation, when you want to check CIDR notation quickly. To convert subnet mask to CIDR notation. It can also be used as a quick reference table for subnet masks. Bit notation is also available, so it is suitable for learning IPv4.