231.2.237.216/30
Multicast RFC 5771Class D (Multicast) — /30 prefix — 2 usable hosts
Network Address
231.2.237.216
Broadcast Address
231.2.237.219
Subnet Mask
255.255.255.252
Usable Hosts
2
First Usable IP
231.2.237.217
Last Usable IP
231.2.237.218
Total IPs
4
Prefix Length
Network address — the base address of the block (231.2.237.216). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 231.2.237.219 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 2 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.252 is the dotted-decimal equivalent of /30. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 231.2.237.216/30 |
| Network Address | 231.2.237.216 |
| Broadcast Address | 231.2.237.219 |
| Subnet Mask | 255.255.255.252 |
| Wildcard Mask | 0.0.0.3 |
| Prefix Length | /30 |
| IP Address Class | Class D (Multicast) |
| Total IP Addresses | 4 |
| Usable Host Addresses | 2 |
| First Usable IP | 231.2.237.217 |
| Last Usable IP | 231.2.237.218 |
| Network (Hex) | 0xE702EDD8 |
| Broadcast (Hex) | 0xE702EDDB |
| Governing RFC | RFC 5771 |
| Address Type | Multicast |
Binary Representation
Network Address
11100111.00000010.11101101
11100111.00000010.11101101.11011000
Subnet Mask
11111111.11111111.11111111.11111100
The first 30 bits (1s in the mask) identify the network. The remaining 2 bits identify hosts within the network.
All 4 IP Addresses in this Range
231.2.237.216
net
231.2.237.217
231.2.237.218
231.2.237.219
bcast
/30 Subnet Reference
Total IPs
4
Usable Hosts
2
Subnet Mask
255.255.255.252
Wildcard
0.0.0.3