Search results
Download the free subnet chart PDF to use as a printable reference. Convert numbers between binary, octal, decimal, and hexadecimal representations. Check up on the security of your website or domain. Validate your SSL/TLS certificate.
- Subnet Calculator
Calculate IP addresses, subnets, and CIDR blocks quickly and...
- Subnet Chart PDF Download
Use it to size your networks and find subnet mask and other...
- Subnetting
From this perspective, a network is a system of...
- CIDR Notation
In this example, we will start with a CIDR range with a...
- Whois
DNS. The Domain Name System (DNS) is a service that allows...
- Register
Free online utilities and APIs for IP addresses, subnet...
- API Documentation
We offer a free REST API to facilitate application...
- Binary Converter
Use the subnet calculator to calculate the network details...
- Subnet Calculator
This IP subnet calculator covers both IPv4 and IPv6 protocols, providing information such as IP address, network address, subnet mask, IP range, and more.
Start simply with inserting an IPv4 IP address in the online subnet calculator and specify its network mask (Mask bits) in CIDR notation. Then, based on your requirements, specify subnet size by choosing subnet mask (number of subnet bits) and number of subnets you’re looking for.
This free tool includes a subnet-mask calculator, a wildcard-mask checker, and an IP address-to-decimal address converter. Open In Browser Direct Download (for PC)
Quickly calculate subnet masks and CIDR notation using our free Subnet Cheat Sheet. Download the blank version in PDF and Word formats or fill it online and save as a ready-to-print PDF.
To help make subnet calculations extremely simple, we are giving you two free resources - a subnet chart, which you can download and save or print for reference, an online subnet calculator, which you can use on your computer or phone to quickly calculate all the relevant details for a subnet, and a subnet API, which you can use to calculate ...
You can use the online tool to calculate prefixes for IPv4 and IPv6 networks based on the IP address and netmask. The Subnet calculator will produce a table with the network and broadcast addresses, netmask, CIDR, wildcard mask, number of addresses in the prefix, first / last host, and address types (Global / Private, Unicast / Multicast, IPv6 ...