Network and IP Address Calculator

display network, broadcast, The first and last given network address

in netmask "bit format" also known as CIDR format (CIDR=Classless Inter-Domain Routing).

subnet Mask converter (bit decimal format)

Network/Node Calculator

Decimal Subnet Mask Inverter

Decimal Subnet Mask Converter

Calculate bits to fill an IP address (inverse)

Decimal Subnet Mask Inverter

Decimal Subnet Mask Converter

Calculate bits to fill an IP address (inverse)

IP multicast address range

All multicast addresses can be easily identified out because the parity pattern "1110" starts.

224.0.0.0 - 224.0.0.255 Well Known Multicast Address, Control Channel

224.0.1.0 - 238.255.255.255 Worldwide (Internet Wide) Multicast Address

239.0.0.0 - 239.255.255.255 local multicast address

Introduction to Subnet Mask Calculator

LAN Planning Tool, Subnet calculation and division, each system of subnet mask indicates conversion, and the system of IP address indicates conversion.。

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