175.231.87.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (175.231.87.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 175.231.87.255 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 | 175.231.87.128/25 |
| Network Address | 175.231.87.128 |
| Broadcast Address | 175.231.87.255 |
| 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 | 175.231.87.129 |
| Last Usable IP | 175.231.87.254 |
| Network (Hex) | 0xAFE75780 |
| Broadcast (Hex) | 0xAFE757FF |
| 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 175.231.87.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 175.231.87.128/26 | 175.231.87.128 | 175.231.87.129 | 175.231.87.190 | 175.231.87.191 | 62 |
| 2 | 175.231.87.192/26 | 175.231.87.192 | 175.231.87.193 | 175.231.87.254 | 175.231.87.255 | 62 |
Split 175.231.87.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 175.231.87.128/27 | 175.231.87.128 | 175.231.87.129 | 175.231.87.158 | 175.231.87.159 | 30 |
| 2 | 175.231.87.160/27 | 175.231.87.160 | 175.231.87.161 | 175.231.87.190 | 175.231.87.191 | 30 |
| 3 | 175.231.87.192/27 | 175.231.87.192 | 175.231.87.193 | 175.231.87.222 | 175.231.87.223 | 30 |
| 4 | 175.231.87.224/27 | 175.231.87.224 | 175.231.87.225 | 175.231.87.254 | 175.231.87.255 | 30 |
Split 175.231.87.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 175.231.87.128/28 | 175.231.87.128 | 175.231.87.129 | 175.231.87.142 | 175.231.87.143 | 14 |
| 2 | 175.231.87.144/28 | 175.231.87.144 | 175.231.87.145 | 175.231.87.158 | 175.231.87.159 | 14 |
| 3 | 175.231.87.160/28 | 175.231.87.160 | 175.231.87.161 | 175.231.87.174 | 175.231.87.175 | 14 |
| 4 | 175.231.87.176/28 | 175.231.87.176 | 175.231.87.177 | 175.231.87.190 | 175.231.87.191 | 14 |
| 5 | 175.231.87.192/28 | 175.231.87.192 | 175.231.87.193 | 175.231.87.206 | 175.231.87.207 | 14 |
| 6 | 175.231.87.208/28 | 175.231.87.208 | 175.231.87.209 | 175.231.87.222 | 175.231.87.223 | 14 |
| 7 | 175.231.87.224/28 | 175.231.87.224 | 175.231.87.225 | 175.231.87.238 | 175.231.87.239 | 14 |
| 8 | 175.231.87.240/28 | 175.231.87.240 | 175.231.87.241 | 175.231.87.254 | 175.231.87.255 | 14 |
Split 175.231.87.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 175.231.87.128/29 | 175.231.87.128 | 175.231.87.129 | 175.231.87.134 | 175.231.87.135 | 6 |
| 2 | 175.231.87.136/29 | 175.231.87.136 | 175.231.87.137 | 175.231.87.142 | 175.231.87.143 | 6 |
| 3 | 175.231.87.144/29 | 175.231.87.144 | 175.231.87.145 | 175.231.87.150 | 175.231.87.151 | 6 |
| 4 | 175.231.87.152/29 | 175.231.87.152 | 175.231.87.153 | 175.231.87.158 | 175.231.87.159 | 6 |
| 5 | 175.231.87.160/29 | 175.231.87.160 | 175.231.87.161 | 175.231.87.166 | 175.231.87.167 | 6 |
| 6 | 175.231.87.168/29 | 175.231.87.168 | 175.231.87.169 | 175.231.87.174 | 175.231.87.175 | 6 |
| 7 | 175.231.87.176/29 | 175.231.87.176 | 175.231.87.177 | 175.231.87.182 | 175.231.87.183 | 6 |
| 8 | 175.231.87.184/29 | 175.231.87.184 | 175.231.87.185 | 175.231.87.190 | 175.231.87.191 | 6 |
| 9 | 175.231.87.192/29 | 175.231.87.192 | 175.231.87.193 | 175.231.87.198 | 175.231.87.199 | 6 |
| 10 | 175.231.87.200/29 | 175.231.87.200 | 175.231.87.201 | 175.231.87.206 | 175.231.87.207 | 6 |
| 11 | 175.231.87.208/29 | 175.231.87.208 | 175.231.87.209 | 175.231.87.214 | 175.231.87.215 | 6 |
| 12 | 175.231.87.216/29 | 175.231.87.216 | 175.231.87.217 | 175.231.87.222 | 175.231.87.223 | 6 |
| 13 | 175.231.87.224/29 | 175.231.87.224 | 175.231.87.225 | 175.231.87.230 | 175.231.87.231 | 6 |
| 14 | 175.231.87.232/29 | 175.231.87.232 | 175.231.87.233 | 175.231.87.238 | 175.231.87.239 | 6 |
| 15 | 175.231.87.240/29 | 175.231.87.240 | 175.231.87.241 | 175.231.87.246 | 175.231.87.247 | 6 |
| 16 | 175.231.87.248/29 | 175.231.87.248 | 175.231.87.249 | 175.231.87.254 | 175.231.87.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.