238.151.56.156/30
Multicast RFC 5771Class D (Multicast) — /30 prefix — 2 usable hosts
Network Address
238.151.56.156
Broadcast Address
238.151.56.159
Subnet Mask
255.255.255.252
Usable Hosts
2
First Usable IP
238.151.56.157
Last Usable IP
238.151.56.158
Total IPs
4
Prefix Length
Network address — the base address of the block (238.151.56.156). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 238.151.56.159 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 | 238.151.56.156/30 |
| Network Address | 238.151.56.156 |
| Broadcast Address | 238.151.56.159 |
| 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 | 238.151.56.157 |
| Last Usable IP | 238.151.56.158 |
| Network (Hex) | 0xEE97389C |
| Broadcast (Hex) | 0xEE97389F |
| Governing RFC | RFC 5771 |
| Address Type | Multicast |
Binary Representation
Network Address
11101110.10010111.00111000
11101110.10010111.00111000.10011100
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
238.151.56.156
net
238.151.56.157
238.151.56.158
238.151.56.159
bcast
/30 Subnet Reference
Total IPs
4
Usable Hosts
2
Subnet Mask
255.255.255.252
Wildcard
0.0.0.3