Are you tired of subnet calculators with limitations? Other free subnet calculators only offer one function, do not allow exporting, and usually require a purchase to enable all the features.

The SolarWinds Free Advanced Subnet Calculator is completely free and fully functional. In fact, it actually delivers four tools in one - what more could you ask for in a free network monitoring tool?

• Address Details - provides forward and reverse DNS resolution, response time, address translation (hexadecimal and binary) and address class information. SolarWinds Free Advanced Subnet Calculator also supports resolution of IP address owners to aid in managing your network.
• Classful Subnet Creator - calculates subnets based on subnet mask, mask bits, host bits, number of subnets and hosts per subnet. SolarWinds Free Advanced Subnet Calculator also generates a range of subnets based on these settings.
• CIDR Calculator - includes full support for Classless Inter-Domain Routing (CIDR). Use of CIDR addresses reduce the size of routing tables and make more IP addresses available within organizations. This CIDR classless subnetting feature is particularly useful for ISPs, universities, or corporations with many Class C addresses.
• Subnet Addresses - generates a list of addresses for any subnet, which then becomes the working document from which to assign current and future IP addresses. You can even assign addresses within SolarWinds Free Advanced Subnet Calculator and then print the worksheets.

To expand the capability of our free Advanced Subnet Calculator, you can also download and evaluate the IP Address Management application contained in the SolarWinds Engineer's Toolset. With the IP Address Management application, you no longer have to rely on Excel® spreadsheets or paper documents to track and manage your installed and available IP addresses – we’re sure if you try it, you’ll love it!

Don't wait - discover today why more than one million network engineers worldwide trust free network monitoring tools from SolarWinds to manage their networks!

"We have been using SolarWinds' Toolset for several years now. Any network engineer would find it hard to function daily without using at least one utility in the Toolset. I am really happy and impressed by the functionality we receive from Toolset year after year."

— Scott Andres, Senior Network Engineer, Network Engineering and Support Group in Lakewood, WA