231.31.48.128/26
Multicast RFC 5771Class D (Multicast) — /26 prefix — 62 usable hosts
Network address — the base address of the block (231.31.48.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 231.31.48.191 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 231.31.48.128/26 |
| Network Address | 231.31.48.128 |
| Broadcast Address | 231.31.48.191 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class D (Multicast) |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 231.31.48.129 |
| Last Usable IP | 231.31.48.190 |
| Network (Hex) | 0xE71F3080 |
| Broadcast (Hex) | 0xE71F30BF |
| Governing RFC | RFC 5771 |
| Address Type | Multicast |
Binary Representation
The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.
Split into Equal Subnets
Split 231.31.48.128/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 231.31.48.128/27 | 231.31.48.128 | 231.31.48.129 | 231.31.48.158 | 231.31.48.159 | 30 |
| 2 | 231.31.48.160/27 | 231.31.48.160 | 231.31.48.161 | 231.31.48.190 | 231.31.48.191 | 30 |
Split 231.31.48.128/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 231.31.48.128/28 | 231.31.48.128 | 231.31.48.129 | 231.31.48.142 | 231.31.48.143 | 14 |
| 2 | 231.31.48.144/28 | 231.31.48.144 | 231.31.48.145 | 231.31.48.158 | 231.31.48.159 | 14 |
| 3 | 231.31.48.160/28 | 231.31.48.160 | 231.31.48.161 | 231.31.48.174 | 231.31.48.175 | 14 |
| 4 | 231.31.48.176/28 | 231.31.48.176 | 231.31.48.177 | 231.31.48.190 | 231.31.48.191 | 14 |
Split 231.31.48.128/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 231.31.48.128/29 | 231.31.48.128 | 231.31.48.129 | 231.31.48.134 | 231.31.48.135 | 6 |
| 2 | 231.31.48.136/29 | 231.31.48.136 | 231.31.48.137 | 231.31.48.142 | 231.31.48.143 | 6 |
| 3 | 231.31.48.144/29 | 231.31.48.144 | 231.31.48.145 | 231.31.48.150 | 231.31.48.151 | 6 |
| 4 | 231.31.48.152/29 | 231.31.48.152 | 231.31.48.153 | 231.31.48.158 | 231.31.48.159 | 6 |
| 5 | 231.31.48.160/29 | 231.31.48.160 | 231.31.48.161 | 231.31.48.166 | 231.31.48.167 | 6 |
| 6 | 231.31.48.168/29 | 231.31.48.168 | 231.31.48.169 | 231.31.48.174 | 231.31.48.175 | 6 |
| 7 | 231.31.48.176/29 | 231.31.48.176 | 231.31.48.177 | 231.31.48.182 | 231.31.48.183 | 6 |
| 8 | 231.31.48.184/29 | 231.31.48.184 | 231.31.48.185 | 231.31.48.190 | 231.31.48.191 | 6 |
Split 231.31.48.128/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 231.31.48.128/30 | 231.31.48.128 | 231.31.48.129 | 231.31.48.130 | 231.31.48.131 | 2 |
| 2 | 231.31.48.132/30 | 231.31.48.132 | 231.31.48.133 | 231.31.48.134 | 231.31.48.135 | 2 |
| 3 | 231.31.48.136/30 | 231.31.48.136 | 231.31.48.137 | 231.31.48.138 | 231.31.48.139 | 2 |
| 4 | 231.31.48.140/30 | 231.31.48.140 | 231.31.48.141 | 231.31.48.142 | 231.31.48.143 | 2 |
| 5 | 231.31.48.144/30 | 231.31.48.144 | 231.31.48.145 | 231.31.48.146 | 231.31.48.147 | 2 |
| 6 | 231.31.48.148/30 | 231.31.48.148 | 231.31.48.149 | 231.31.48.150 | 231.31.48.151 | 2 |
| 7 | 231.31.48.152/30 | 231.31.48.152 | 231.31.48.153 | 231.31.48.154 | 231.31.48.155 | 2 |
| 8 | 231.31.48.156/30 | 231.31.48.156 | 231.31.48.157 | 231.31.48.158 | 231.31.48.159 | 2 |
| 9 | 231.31.48.160/30 | 231.31.48.160 | 231.31.48.161 | 231.31.48.162 | 231.31.48.163 | 2 |
| 10 | 231.31.48.164/30 | 231.31.48.164 | 231.31.48.165 | 231.31.48.166 | 231.31.48.167 | 2 |
| 11 | 231.31.48.168/30 | 231.31.48.168 | 231.31.48.169 | 231.31.48.170 | 231.31.48.171 | 2 |
| 12 | 231.31.48.172/30 | 231.31.48.172 | 231.31.48.173 | 231.31.48.174 | 231.31.48.175 | 2 |
| 13 | 231.31.48.176/30 | 231.31.48.176 | 231.31.48.177 | 231.31.48.178 | 231.31.48.179 | 2 |
| 14 | 231.31.48.180/30 | 231.31.48.180 | 231.31.48.181 | 231.31.48.182 | 231.31.48.183 | 2 |
| 15 | 231.31.48.184/30 | 231.31.48.184 | 231.31.48.185 | 231.31.48.186 | 231.31.48.187 | 2 |
| 16 | 231.31.48.188/30 | 231.31.48.188 | 231.31.48.189 | 231.31.48.190 | 231.31.48.191 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.