The Advanced Subnet Calculator is a popular network management tool, most notably offered as a free tool by SolarWinds. It helps network administrators quickly divide large networks (Classes A, B, and C) into smaller, more manageable pieces called subnets.
Doing this math by hand is time-consuming and leads to costly setup errors. The calculator automates the process instantly. 🛠️ Core Features of the Tool
The tool is essentially four network utilities packed into one simple interface:
Classful Subnet Creator: Divides traditional Class A, B, and C networks.
CIDR Calculator: Fully supports Classless Inter-Domain Routing for modern, flexible networking.
Address Details: Shows DNS resolution, response times, and translates IPs into binary or hex codes.
Subnet Addresses Generation: Generates clean lists of your IP ranges to export straight to Excel. 📊 How It Divides Class A, B, and C Networks
Every IP address has two parts: a Network ID (the neighborhood) and a Host ID (the specific house). Subnetting works by “borrowing” bits from the host part to create smaller sub-networks.
The Advanced Subnet Calculator allows you to plug in a starting IP address and select how you want to break it down. It calculates everything based on these classic network types:
FREE Advanced Subnet Calculator – IP Calculator – SolarWinds