Subby - Subnet Calculator | IP Calculator is a free Chrome add-on developed by ASIC Enterprises. It is a handy tool for calculating subnet configurations and IP addresses. With this IP calculator, you can easily determine the number of possible subnets for a given network address block. It allows you to choose the combination of subnets and the number of hosts per subnet that best suits your network. Additionally, you can obtain the host address range and broadcast address for any given subnet mask.

This online subnet calculator supports various network configurations, including IP or network address, netmask, Cisco wildcard mask, and CIDR notation. It also offers the option to perform reverse subnetting, where the number of hosts is known but the netmask is unknown. By providing a second netmask, you can design subnets and supernets.

CIDR, or Classless Inter Domain Routing, is a key feature of this calculator. CIDR was developed to reduce the size of routing tables and improve performance in large routers. It allows for address aggregation, enabling multiple networks to be addressed with a single routing entry. This eliminates the need for individual entries for each network, resulting in a more efficient routing table.

Subby - Subnet Calculator | IP Calculator is a valuable tool for network administrators and engineers. It helps save time by quickly provisioning or reclaiming IP addresses and improves network and application uptime. With its user-friendly interface and comprehensive features, this Chrome add-on is a must-have for anyone working with network configurations.