NETCUE TECHNOLOGY: We Rescue Networks

Broadcast Address Calculator

Calculate broadcast addresses for IPv4 subnets.

Results:

How Broadcast Addresses Work

The broadcast address is the highest address in a subnet, used to send data to all devices on that network segment.

Calculation Method

Formula: Broadcast = Network Address OR (NOT Subnet Mask)

This sets all host bits to 1 within the subnet.

Examples

  • Network: 192.168.1.0/24 → Broadcast: 192.168.1.255
  • Network: 10.0.0.0/8 → Broadcast: 10.255.255.255
  • Network: 172.16.0.0/16 → Broadcast: 172.16.255.255

Important Notes

  • The broadcast address cannot be assigned to hosts
  • It's the last address in any IP subnet
  • Limited broadcast (255.255.255.255) reaches all hosts on the local network

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