131.105.50.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (131.105.50.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 131.105.50.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 126 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 131.105.50.128/25 |
| Network Address | 131.105.50.128 |
| Broadcast Address | 131.105.50.255 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class B |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 131.105.50.129 |
| Last Usable IP | 131.105.50.254 |
| Network (Hex) | 0x83693280 |
| Broadcast (Hex) | 0x836932FF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 25 bits (1s in the mask) identify the network. The remaining 7 bits identify hosts within the network.
Split into Equal Subnets
Split 131.105.50.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 131.105.50.128/26 | 131.105.50.128 | 131.105.50.129 | 131.105.50.190 | 131.105.50.191 | 62 |
| 2 | 131.105.50.192/26 | 131.105.50.192 | 131.105.50.193 | 131.105.50.254 | 131.105.50.255 | 62 |
Split 131.105.50.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 131.105.50.128/27 | 131.105.50.128 | 131.105.50.129 | 131.105.50.158 | 131.105.50.159 | 30 |
| 2 | 131.105.50.160/27 | 131.105.50.160 | 131.105.50.161 | 131.105.50.190 | 131.105.50.191 | 30 |
| 3 | 131.105.50.192/27 | 131.105.50.192 | 131.105.50.193 | 131.105.50.222 | 131.105.50.223 | 30 |
| 4 | 131.105.50.224/27 | 131.105.50.224 | 131.105.50.225 | 131.105.50.254 | 131.105.50.255 | 30 |
Split 131.105.50.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 131.105.50.128/28 | 131.105.50.128 | 131.105.50.129 | 131.105.50.142 | 131.105.50.143 | 14 |
| 2 | 131.105.50.144/28 | 131.105.50.144 | 131.105.50.145 | 131.105.50.158 | 131.105.50.159 | 14 |
| 3 | 131.105.50.160/28 | 131.105.50.160 | 131.105.50.161 | 131.105.50.174 | 131.105.50.175 | 14 |
| 4 | 131.105.50.176/28 | 131.105.50.176 | 131.105.50.177 | 131.105.50.190 | 131.105.50.191 | 14 |
| 5 | 131.105.50.192/28 | 131.105.50.192 | 131.105.50.193 | 131.105.50.206 | 131.105.50.207 | 14 |
| 6 | 131.105.50.208/28 | 131.105.50.208 | 131.105.50.209 | 131.105.50.222 | 131.105.50.223 | 14 |
| 7 | 131.105.50.224/28 | 131.105.50.224 | 131.105.50.225 | 131.105.50.238 | 131.105.50.239 | 14 |
| 8 | 131.105.50.240/28 | 131.105.50.240 | 131.105.50.241 | 131.105.50.254 | 131.105.50.255 | 14 |
Split 131.105.50.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 131.105.50.128/29 | 131.105.50.128 | 131.105.50.129 | 131.105.50.134 | 131.105.50.135 | 6 |
| 2 | 131.105.50.136/29 | 131.105.50.136 | 131.105.50.137 | 131.105.50.142 | 131.105.50.143 | 6 |
| 3 | 131.105.50.144/29 | 131.105.50.144 | 131.105.50.145 | 131.105.50.150 | 131.105.50.151 | 6 |
| 4 | 131.105.50.152/29 | 131.105.50.152 | 131.105.50.153 | 131.105.50.158 | 131.105.50.159 | 6 |
| 5 | 131.105.50.160/29 | 131.105.50.160 | 131.105.50.161 | 131.105.50.166 | 131.105.50.167 | 6 |
| 6 | 131.105.50.168/29 | 131.105.50.168 | 131.105.50.169 | 131.105.50.174 | 131.105.50.175 | 6 |
| 7 | 131.105.50.176/29 | 131.105.50.176 | 131.105.50.177 | 131.105.50.182 | 131.105.50.183 | 6 |
| 8 | 131.105.50.184/29 | 131.105.50.184 | 131.105.50.185 | 131.105.50.190 | 131.105.50.191 | 6 |
| 9 | 131.105.50.192/29 | 131.105.50.192 | 131.105.50.193 | 131.105.50.198 | 131.105.50.199 | 6 |
| 10 | 131.105.50.200/29 | 131.105.50.200 | 131.105.50.201 | 131.105.50.206 | 131.105.50.207 | 6 |
| 11 | 131.105.50.208/29 | 131.105.50.208 | 131.105.50.209 | 131.105.50.214 | 131.105.50.215 | 6 |
| 12 | 131.105.50.216/29 | 131.105.50.216 | 131.105.50.217 | 131.105.50.222 | 131.105.50.223 | 6 |
| 13 | 131.105.50.224/29 | 131.105.50.224 | 131.105.50.225 | 131.105.50.230 | 131.105.50.231 | 6 |
| 14 | 131.105.50.232/29 | 131.105.50.232 | 131.105.50.233 | 131.105.50.238 | 131.105.50.239 | 6 |
| 15 | 131.105.50.240/29 | 131.105.50.240 | 131.105.50.241 | 131.105.50.246 | 131.105.50.247 | 6 |
| 16 | 131.105.50.248/29 | 131.105.50.248 | 131.105.50.249 | 131.105.50.254 | 131.105.50.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.