188.252.133.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (188.252.133.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 188.252.133.255 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 | 188.252.133.128/25 |
| Network Address | 188.252.133.128 |
| Broadcast Address | 188.252.133.255 |
| 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 | 188.252.133.129 |
| Last Usable IP | 188.252.133.254 |
| Network (Hex) | 0xBCFC8580 |
| Broadcast (Hex) | 0xBCFC85FF |
| 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 188.252.133.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 188.252.133.128/26 | 188.252.133.128 | 188.252.133.129 | 188.252.133.190 | 188.252.133.191 | 62 |
| 2 | 188.252.133.192/26 | 188.252.133.192 | 188.252.133.193 | 188.252.133.254 | 188.252.133.255 | 62 |
Split 188.252.133.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 188.252.133.128/27 | 188.252.133.128 | 188.252.133.129 | 188.252.133.158 | 188.252.133.159 | 30 |
| 2 | 188.252.133.160/27 | 188.252.133.160 | 188.252.133.161 | 188.252.133.190 | 188.252.133.191 | 30 |
| 3 | 188.252.133.192/27 | 188.252.133.192 | 188.252.133.193 | 188.252.133.222 | 188.252.133.223 | 30 |
| 4 | 188.252.133.224/27 | 188.252.133.224 | 188.252.133.225 | 188.252.133.254 | 188.252.133.255 | 30 |
Split 188.252.133.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 188.252.133.128/28 | 188.252.133.128 | 188.252.133.129 | 188.252.133.142 | 188.252.133.143 | 14 |
| 2 | 188.252.133.144/28 | 188.252.133.144 | 188.252.133.145 | 188.252.133.158 | 188.252.133.159 | 14 |
| 3 | 188.252.133.160/28 | 188.252.133.160 | 188.252.133.161 | 188.252.133.174 | 188.252.133.175 | 14 |
| 4 | 188.252.133.176/28 | 188.252.133.176 | 188.252.133.177 | 188.252.133.190 | 188.252.133.191 | 14 |
| 5 | 188.252.133.192/28 | 188.252.133.192 | 188.252.133.193 | 188.252.133.206 | 188.252.133.207 | 14 |
| 6 | 188.252.133.208/28 | 188.252.133.208 | 188.252.133.209 | 188.252.133.222 | 188.252.133.223 | 14 |
| 7 | 188.252.133.224/28 | 188.252.133.224 | 188.252.133.225 | 188.252.133.238 | 188.252.133.239 | 14 |
| 8 | 188.252.133.240/28 | 188.252.133.240 | 188.252.133.241 | 188.252.133.254 | 188.252.133.255 | 14 |
Split 188.252.133.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 188.252.133.128/29 | 188.252.133.128 | 188.252.133.129 | 188.252.133.134 | 188.252.133.135 | 6 |
| 2 | 188.252.133.136/29 | 188.252.133.136 | 188.252.133.137 | 188.252.133.142 | 188.252.133.143 | 6 |
| 3 | 188.252.133.144/29 | 188.252.133.144 | 188.252.133.145 | 188.252.133.150 | 188.252.133.151 | 6 |
| 4 | 188.252.133.152/29 | 188.252.133.152 | 188.252.133.153 | 188.252.133.158 | 188.252.133.159 | 6 |
| 5 | 188.252.133.160/29 | 188.252.133.160 | 188.252.133.161 | 188.252.133.166 | 188.252.133.167 | 6 |
| 6 | 188.252.133.168/29 | 188.252.133.168 | 188.252.133.169 | 188.252.133.174 | 188.252.133.175 | 6 |
| 7 | 188.252.133.176/29 | 188.252.133.176 | 188.252.133.177 | 188.252.133.182 | 188.252.133.183 | 6 |
| 8 | 188.252.133.184/29 | 188.252.133.184 | 188.252.133.185 | 188.252.133.190 | 188.252.133.191 | 6 |
| 9 | 188.252.133.192/29 | 188.252.133.192 | 188.252.133.193 | 188.252.133.198 | 188.252.133.199 | 6 |
| 10 | 188.252.133.200/29 | 188.252.133.200 | 188.252.133.201 | 188.252.133.206 | 188.252.133.207 | 6 |
| 11 | 188.252.133.208/29 | 188.252.133.208 | 188.252.133.209 | 188.252.133.214 | 188.252.133.215 | 6 |
| 12 | 188.252.133.216/29 | 188.252.133.216 | 188.252.133.217 | 188.252.133.222 | 188.252.133.223 | 6 |
| 13 | 188.252.133.224/29 | 188.252.133.224 | 188.252.133.225 | 188.252.133.230 | 188.252.133.231 | 6 |
| 14 | 188.252.133.232/29 | 188.252.133.232 | 188.252.133.233 | 188.252.133.238 | 188.252.133.239 | 6 |
| 15 | 188.252.133.240/29 | 188.252.133.240 | 188.252.133.241 | 188.252.133.246 | 188.252.133.247 | 6 |
| 16 | 188.252.133.248/29 | 188.252.133.248 | 188.252.133.249 | 188.252.133.254 | 188.252.133.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.