231.31.186.0/24
Multicast RFC 5771Class D (Multicast) — /24 prefix — 254 usable hosts
Network address — the base address of the block (231.31.186.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 231.31.186.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 254 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.0 is the dotted-decimal equivalent of /24. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 231.31.186.0/24 |
| Network Address | 231.31.186.0 |
| Broadcast Address | 231.31.186.255 |
| Subnet Mask | 255.255.255.0 |
| Wildcard Mask | 0.0.0.255 |
| Prefix Length | /24 |
| IP Address Class | Class D (Multicast) |
| Total IP Addresses | 256 |
| Usable Host Addresses | 254 |
| First Usable IP | 231.31.186.1 |
| Last Usable IP | 231.31.186.254 |
| Network (Hex) | 0xE71FBA00 |
| Broadcast (Hex) | 0xE71FBAFF |
| Governing RFC | RFC 5771 |
| Address Type | Multicast |
Binary Representation
The first 24 bits (1s in the mask) identify the network. The remaining 8 bits identify hosts within the network.
Split into Equal Subnets
Split 231.31.186.0/24 into 2 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 231.31.186.0/25 | 231.31.186.0 | 231.31.186.1 | 231.31.186.126 | 231.31.186.127 | 126 |
| 2 | 231.31.186.128/25 | 231.31.186.128 | 231.31.186.129 | 231.31.186.254 | 231.31.186.255 | 126 |
Split 231.31.186.0/24 into 4 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 231.31.186.0/26 | 231.31.186.0 | 231.31.186.1 | 231.31.186.62 | 231.31.186.63 | 62 |
| 2 | 231.31.186.64/26 | 231.31.186.64 | 231.31.186.65 | 231.31.186.126 | 231.31.186.127 | 62 |
| 3 | 231.31.186.128/26 | 231.31.186.128 | 231.31.186.129 | 231.31.186.190 | 231.31.186.191 | 62 |
| 4 | 231.31.186.192/26 | 231.31.186.192 | 231.31.186.193 | 231.31.186.254 | 231.31.186.255 | 62 |
Split 231.31.186.0/24 into 8 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 231.31.186.0/27 | 231.31.186.0 | 231.31.186.1 | 231.31.186.30 | 231.31.186.31 | 30 |
| 2 | 231.31.186.32/27 | 231.31.186.32 | 231.31.186.33 | 231.31.186.62 | 231.31.186.63 | 30 |
| 3 | 231.31.186.64/27 | 231.31.186.64 | 231.31.186.65 | 231.31.186.94 | 231.31.186.95 | 30 |
| 4 | 231.31.186.96/27 | 231.31.186.96 | 231.31.186.97 | 231.31.186.126 | 231.31.186.127 | 30 |
| 5 | 231.31.186.128/27 | 231.31.186.128 | 231.31.186.129 | 231.31.186.158 | 231.31.186.159 | 30 |
| 6 | 231.31.186.160/27 | 231.31.186.160 | 231.31.186.161 | 231.31.186.190 | 231.31.186.191 | 30 |
| 7 | 231.31.186.192/27 | 231.31.186.192 | 231.31.186.193 | 231.31.186.222 | 231.31.186.223 | 30 |
| 8 | 231.31.186.224/27 | 231.31.186.224 | 231.31.186.225 | 231.31.186.254 | 231.31.186.255 | 30 |
Split 231.31.186.0/24 into 16 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 231.31.186.0/28 | 231.31.186.0 | 231.31.186.1 | 231.31.186.14 | 231.31.186.15 | 14 |
| 2 | 231.31.186.16/28 | 231.31.186.16 | 231.31.186.17 | 231.31.186.30 | 231.31.186.31 | 14 |
| 3 | 231.31.186.32/28 | 231.31.186.32 | 231.31.186.33 | 231.31.186.46 | 231.31.186.47 | 14 |
| 4 | 231.31.186.48/28 | 231.31.186.48 | 231.31.186.49 | 231.31.186.62 | 231.31.186.63 | 14 |
| 5 | 231.31.186.64/28 | 231.31.186.64 | 231.31.186.65 | 231.31.186.78 | 231.31.186.79 | 14 |
| 6 | 231.31.186.80/28 | 231.31.186.80 | 231.31.186.81 | 231.31.186.94 | 231.31.186.95 | 14 |
| 7 | 231.31.186.96/28 | 231.31.186.96 | 231.31.186.97 | 231.31.186.110 | 231.31.186.111 | 14 |
| 8 | 231.31.186.112/28 | 231.31.186.112 | 231.31.186.113 | 231.31.186.126 | 231.31.186.127 | 14 |
| 9 | 231.31.186.128/28 | 231.31.186.128 | 231.31.186.129 | 231.31.186.142 | 231.31.186.143 | 14 |
| 10 | 231.31.186.144/28 | 231.31.186.144 | 231.31.186.145 | 231.31.186.158 | 231.31.186.159 | 14 |
| 11 | 231.31.186.160/28 | 231.31.186.160 | 231.31.186.161 | 231.31.186.174 | 231.31.186.175 | 14 |
| 12 | 231.31.186.176/28 | 231.31.186.176 | 231.31.186.177 | 231.31.186.190 | 231.31.186.191 | 14 |
| 13 | 231.31.186.192/28 | 231.31.186.192 | 231.31.186.193 | 231.31.186.206 | 231.31.186.207 | 14 |
| 14 | 231.31.186.208/28 | 231.31.186.208 | 231.31.186.209 | 231.31.186.222 | 231.31.186.223 | 14 |
| 15 | 231.31.186.224/28 | 231.31.186.224 | 231.31.186.225 | 231.31.186.238 | 231.31.186.239 | 14 |
| 16 | 231.31.186.240/28 | 231.31.186.240 | 231.31.186.241 | 231.31.186.254 | 231.31.186.255 | 14 |
IP Address Sample
Showing first 16 of 256 total IPs.