159.140.187.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (159.140.187.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 159.140.187.255 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 | 159.140.187.128/25 |
| Network Address | 159.140.187.128 |
| Broadcast Address | 159.140.187.255 |
| 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 | 159.140.187.129 |
| Last Usable IP | 159.140.187.254 |
| Network (Hex) | 0x9F8CBB80 |
| Broadcast (Hex) | 0x9F8CBBFF |
| 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 159.140.187.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 159.140.187.128/26 | 159.140.187.128 | 159.140.187.129 | 159.140.187.190 | 159.140.187.191 | 62 |
| 2 | 159.140.187.192/26 | 159.140.187.192 | 159.140.187.193 | 159.140.187.254 | 159.140.187.255 | 62 |
Split 159.140.187.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 159.140.187.128/27 | 159.140.187.128 | 159.140.187.129 | 159.140.187.158 | 159.140.187.159 | 30 |
| 2 | 159.140.187.160/27 | 159.140.187.160 | 159.140.187.161 | 159.140.187.190 | 159.140.187.191 | 30 |
| 3 | 159.140.187.192/27 | 159.140.187.192 | 159.140.187.193 | 159.140.187.222 | 159.140.187.223 | 30 |
| 4 | 159.140.187.224/27 | 159.140.187.224 | 159.140.187.225 | 159.140.187.254 | 159.140.187.255 | 30 |
Split 159.140.187.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 159.140.187.128/28 | 159.140.187.128 | 159.140.187.129 | 159.140.187.142 | 159.140.187.143 | 14 |
| 2 | 159.140.187.144/28 | 159.140.187.144 | 159.140.187.145 | 159.140.187.158 | 159.140.187.159 | 14 |
| 3 | 159.140.187.160/28 | 159.140.187.160 | 159.140.187.161 | 159.140.187.174 | 159.140.187.175 | 14 |
| 4 | 159.140.187.176/28 | 159.140.187.176 | 159.140.187.177 | 159.140.187.190 | 159.140.187.191 | 14 |
| 5 | 159.140.187.192/28 | 159.140.187.192 | 159.140.187.193 | 159.140.187.206 | 159.140.187.207 | 14 |
| 6 | 159.140.187.208/28 | 159.140.187.208 | 159.140.187.209 | 159.140.187.222 | 159.140.187.223 | 14 |
| 7 | 159.140.187.224/28 | 159.140.187.224 | 159.140.187.225 | 159.140.187.238 | 159.140.187.239 | 14 |
| 8 | 159.140.187.240/28 | 159.140.187.240 | 159.140.187.241 | 159.140.187.254 | 159.140.187.255 | 14 |
Split 159.140.187.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 159.140.187.128/29 | 159.140.187.128 | 159.140.187.129 | 159.140.187.134 | 159.140.187.135 | 6 |
| 2 | 159.140.187.136/29 | 159.140.187.136 | 159.140.187.137 | 159.140.187.142 | 159.140.187.143 | 6 |
| 3 | 159.140.187.144/29 | 159.140.187.144 | 159.140.187.145 | 159.140.187.150 | 159.140.187.151 | 6 |
| 4 | 159.140.187.152/29 | 159.140.187.152 | 159.140.187.153 | 159.140.187.158 | 159.140.187.159 | 6 |
| 5 | 159.140.187.160/29 | 159.140.187.160 | 159.140.187.161 | 159.140.187.166 | 159.140.187.167 | 6 |
| 6 | 159.140.187.168/29 | 159.140.187.168 | 159.140.187.169 | 159.140.187.174 | 159.140.187.175 | 6 |
| 7 | 159.140.187.176/29 | 159.140.187.176 | 159.140.187.177 | 159.140.187.182 | 159.140.187.183 | 6 |
| 8 | 159.140.187.184/29 | 159.140.187.184 | 159.140.187.185 | 159.140.187.190 | 159.140.187.191 | 6 |
| 9 | 159.140.187.192/29 | 159.140.187.192 | 159.140.187.193 | 159.140.187.198 | 159.140.187.199 | 6 |
| 10 | 159.140.187.200/29 | 159.140.187.200 | 159.140.187.201 | 159.140.187.206 | 159.140.187.207 | 6 |
| 11 | 159.140.187.208/29 | 159.140.187.208 | 159.140.187.209 | 159.140.187.214 | 159.140.187.215 | 6 |
| 12 | 159.140.187.216/29 | 159.140.187.216 | 159.140.187.217 | 159.140.187.222 | 159.140.187.223 | 6 |
| 13 | 159.140.187.224/29 | 159.140.187.224 | 159.140.187.225 | 159.140.187.230 | 159.140.187.231 | 6 |
| 14 | 159.140.187.232/29 | 159.140.187.232 | 159.140.187.233 | 159.140.187.238 | 159.140.187.239 | 6 |
| 15 | 159.140.187.240/29 | 159.140.187.240 | 159.140.187.241 | 159.140.187.246 | 159.140.187.247 | 6 |
| 16 | 159.140.187.248/29 | 159.140.187.248 | 159.140.187.249 | 159.140.187.254 | 159.140.187.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.