171.75.144.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (171.75.144.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 171.75.144.255 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 | 171.75.144.128/25 |
| Network Address | 171.75.144.128 |
| Broadcast Address | 171.75.144.255 |
| 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 | 171.75.144.129 |
| Last Usable IP | 171.75.144.254 |
| Network (Hex) | 0xAB4B9080 |
| Broadcast (Hex) | 0xAB4B90FF |
| 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 171.75.144.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 171.75.144.128/26 | 171.75.144.128 | 171.75.144.129 | 171.75.144.190 | 171.75.144.191 | 62 |
| 2 | 171.75.144.192/26 | 171.75.144.192 | 171.75.144.193 | 171.75.144.254 | 171.75.144.255 | 62 |
Split 171.75.144.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 171.75.144.128/27 | 171.75.144.128 | 171.75.144.129 | 171.75.144.158 | 171.75.144.159 | 30 |
| 2 | 171.75.144.160/27 | 171.75.144.160 | 171.75.144.161 | 171.75.144.190 | 171.75.144.191 | 30 |
| 3 | 171.75.144.192/27 | 171.75.144.192 | 171.75.144.193 | 171.75.144.222 | 171.75.144.223 | 30 |
| 4 | 171.75.144.224/27 | 171.75.144.224 | 171.75.144.225 | 171.75.144.254 | 171.75.144.255 | 30 |
Split 171.75.144.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 171.75.144.128/28 | 171.75.144.128 | 171.75.144.129 | 171.75.144.142 | 171.75.144.143 | 14 |
| 2 | 171.75.144.144/28 | 171.75.144.144 | 171.75.144.145 | 171.75.144.158 | 171.75.144.159 | 14 |
| 3 | 171.75.144.160/28 | 171.75.144.160 | 171.75.144.161 | 171.75.144.174 | 171.75.144.175 | 14 |
| 4 | 171.75.144.176/28 | 171.75.144.176 | 171.75.144.177 | 171.75.144.190 | 171.75.144.191 | 14 |
| 5 | 171.75.144.192/28 | 171.75.144.192 | 171.75.144.193 | 171.75.144.206 | 171.75.144.207 | 14 |
| 6 | 171.75.144.208/28 | 171.75.144.208 | 171.75.144.209 | 171.75.144.222 | 171.75.144.223 | 14 |
| 7 | 171.75.144.224/28 | 171.75.144.224 | 171.75.144.225 | 171.75.144.238 | 171.75.144.239 | 14 |
| 8 | 171.75.144.240/28 | 171.75.144.240 | 171.75.144.241 | 171.75.144.254 | 171.75.144.255 | 14 |
Split 171.75.144.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 171.75.144.128/29 | 171.75.144.128 | 171.75.144.129 | 171.75.144.134 | 171.75.144.135 | 6 |
| 2 | 171.75.144.136/29 | 171.75.144.136 | 171.75.144.137 | 171.75.144.142 | 171.75.144.143 | 6 |
| 3 | 171.75.144.144/29 | 171.75.144.144 | 171.75.144.145 | 171.75.144.150 | 171.75.144.151 | 6 |
| 4 | 171.75.144.152/29 | 171.75.144.152 | 171.75.144.153 | 171.75.144.158 | 171.75.144.159 | 6 |
| 5 | 171.75.144.160/29 | 171.75.144.160 | 171.75.144.161 | 171.75.144.166 | 171.75.144.167 | 6 |
| 6 | 171.75.144.168/29 | 171.75.144.168 | 171.75.144.169 | 171.75.144.174 | 171.75.144.175 | 6 |
| 7 | 171.75.144.176/29 | 171.75.144.176 | 171.75.144.177 | 171.75.144.182 | 171.75.144.183 | 6 |
| 8 | 171.75.144.184/29 | 171.75.144.184 | 171.75.144.185 | 171.75.144.190 | 171.75.144.191 | 6 |
| 9 | 171.75.144.192/29 | 171.75.144.192 | 171.75.144.193 | 171.75.144.198 | 171.75.144.199 | 6 |
| 10 | 171.75.144.200/29 | 171.75.144.200 | 171.75.144.201 | 171.75.144.206 | 171.75.144.207 | 6 |
| 11 | 171.75.144.208/29 | 171.75.144.208 | 171.75.144.209 | 171.75.144.214 | 171.75.144.215 | 6 |
| 12 | 171.75.144.216/29 | 171.75.144.216 | 171.75.144.217 | 171.75.144.222 | 171.75.144.223 | 6 |
| 13 | 171.75.144.224/29 | 171.75.144.224 | 171.75.144.225 | 171.75.144.230 | 171.75.144.231 | 6 |
| 14 | 171.75.144.232/29 | 171.75.144.232 | 171.75.144.233 | 171.75.144.238 | 171.75.144.239 | 6 |
| 15 | 171.75.144.240/29 | 171.75.144.240 | 171.75.144.241 | 171.75.144.246 | 171.75.144.247 | 6 |
| 16 | 171.75.144.248/29 | 171.75.144.248 | 171.75.144.249 | 171.75.144.254 | 171.75.144.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.