This IP subnet calculator covers both IPv4 and IPv6 protocols, providing information such as IP address, network address, subnet mask, IP range, and more.

For IPv4, a network may also be characterized by its subnet mask or netmask, which is the bitmask that, when applied by a bitwise AND operation to any IP address in the network, yields …

Jul 23, 2025 · A Subnet Mask is a numerical value that describes a computer or device's how to divide an IP address into two parts: the network portion and the host portion. The network …

Oct 26, 2025 · A subnet mask (or netmask) is the companion to an IP address that tells devices which part of the address is the network portion and which part is the host portion.

Nov 14, 2025 · A subnet mask is a number that sets the rules of how an IP address should be read. It helps systems identify the network and the devices (hosts) operating within it. You can …

Calculate subnet mask, network address, broadcast address, and usable host range from any IP address and CIDR notation.

Oct 22, 2025 · In an IP address, a subnet mask is a number structured like an IP address that shows the start of the host number in the IP address. Before the use of classless inter-domain …

What is a subnet mask? A subnet mask is like an IP address, but for only internal usage within a network.

Mar 18, 2025 · IP subnetting is a crucial concept in networking that allows organizations to divide a large network into smaller, more manageable sub-networks, or subnets. This process is …

Jul 23, 2025 · What Are IP Addresses and Subnet Masks? An IP address is a 32-bit identifier for devices on a network, often written in dot-decimal format (e.g., 192.168.10.0). A subnet mask …