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I'm kinda new to networking. I have a small question, how can I determine what type of casting (unicast, multicast or broadcast) is it based on IPv4 address. For example: 142.55.172.200

I tried to search up but I still don't understand. Thank you.

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For IPv4, unicast addresses are in the 0.0.0.0 to 223.255.255.255 range*, multicast addresses are in 224.0.0.0 to 239.255.255.255 address range.

*Broadcast addresses are more complicated. There is the limited broadcast address (255.255.255.255) that works on all networks, but there is also a network broadcast address that is the last address in a network.


For a full explanation of IPv4 network addressing, see this two-part answer.

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