IPRangeExplorer

224.0.0.0/3

Multicast RFC 5771

Class D (Multicast) — /3 prefix — 536,870,910 usable hosts

Network Address
224.0.0.0
Broadcast Address
255.255.255.255
Subnet Mask
224.0.0.0
Usable Hosts
536,870,910
First Usable IP
224.0.0.1
Last Usable IP
255.255.255.254
Total IPs
536,870,912
Prefix Length
/3

Network address — the base address of the block (224.0.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 255.255.255.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 536,870,910 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 224.0.0.0 is the dotted-decimal equivalent of /3. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 224.0.0.0/3
Network Address 224.0.0.0
Broadcast Address 255.255.255.255
Subnet Mask 224.0.0.0
Wildcard Mask 31.255.255.255
Prefix Length /3
IP Address Class Class D (Multicast)
Total IP Addresses 536,870,912
Usable Host Addresses 536,870,910
First Usable IP 224.0.0.1
Last Usable IP 255.255.255.254
Network (Hex) 0xE0000000
Broadcast (Hex) 0xFFFFFFFF
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11 11100000.00000000.00000000.00000000
Subnet Mask
11100000.00000000.00000000.00000000

The first 3 bits (1s in the mask) identify the network. The remaining 29 bits identify hosts within the network.

Split into Equal Subnets

Split 224.0.0.0/3 into 2 equal /4 subnets (268,435,454 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 224.0.0.0/4 224.0.0.0 224.0.0.1 239.255.255.254 239.255.255.255 268,435,454
2 240.0.0.0/4 240.0.0.0 240.0.0.1 255.255.255.254 255.255.255.255 268,435,454

/3 Subnet Reference

Total IPs 536,870,912
Usable Hosts 536,870,910
Subnet Mask 224.0.0.0
Wildcard 31.255.255.255
Full /3 reference →

Related Ranges

Parent /2 block 192.0.0.0/2 Sibling /3 block 192.0.0.0/3

Adjacent Prefix Sizes

/1 2,147,483,646 hosts /2 1,073,741,822 hosts /3 536,870,910 hosts /4 268,435,454 hosts /5 134,217,726 hosts

Calculate Another