187.244.255.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (187.244.255.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 187.244.255.255 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 | 187.244.255.128/25 |
| Network Address | 187.244.255.128 |
| Broadcast Address | 187.244.255.255 |
| 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 | 187.244.255.129 |
| Last Usable IP | 187.244.255.254 |
| Network (Hex) | 0xBBF4FF80 |
| Broadcast (Hex) | 0xBBF4FFFF |
| 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 187.244.255.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 187.244.255.128/26 | 187.244.255.128 | 187.244.255.129 | 187.244.255.190 | 187.244.255.191 | 62 |
| 2 | 187.244.255.192/26 | 187.244.255.192 | 187.244.255.193 | 187.244.255.254 | 187.244.255.255 | 62 |
Split 187.244.255.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 187.244.255.128/27 | 187.244.255.128 | 187.244.255.129 | 187.244.255.158 | 187.244.255.159 | 30 |
| 2 | 187.244.255.160/27 | 187.244.255.160 | 187.244.255.161 | 187.244.255.190 | 187.244.255.191 | 30 |
| 3 | 187.244.255.192/27 | 187.244.255.192 | 187.244.255.193 | 187.244.255.222 | 187.244.255.223 | 30 |
| 4 | 187.244.255.224/27 | 187.244.255.224 | 187.244.255.225 | 187.244.255.254 | 187.244.255.255 | 30 |
Split 187.244.255.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 187.244.255.128/28 | 187.244.255.128 | 187.244.255.129 | 187.244.255.142 | 187.244.255.143 | 14 |
| 2 | 187.244.255.144/28 | 187.244.255.144 | 187.244.255.145 | 187.244.255.158 | 187.244.255.159 | 14 |
| 3 | 187.244.255.160/28 | 187.244.255.160 | 187.244.255.161 | 187.244.255.174 | 187.244.255.175 | 14 |
| 4 | 187.244.255.176/28 | 187.244.255.176 | 187.244.255.177 | 187.244.255.190 | 187.244.255.191 | 14 |
| 5 | 187.244.255.192/28 | 187.244.255.192 | 187.244.255.193 | 187.244.255.206 | 187.244.255.207 | 14 |
| 6 | 187.244.255.208/28 | 187.244.255.208 | 187.244.255.209 | 187.244.255.222 | 187.244.255.223 | 14 |
| 7 | 187.244.255.224/28 | 187.244.255.224 | 187.244.255.225 | 187.244.255.238 | 187.244.255.239 | 14 |
| 8 | 187.244.255.240/28 | 187.244.255.240 | 187.244.255.241 | 187.244.255.254 | 187.244.255.255 | 14 |
Split 187.244.255.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 187.244.255.128/29 | 187.244.255.128 | 187.244.255.129 | 187.244.255.134 | 187.244.255.135 | 6 |
| 2 | 187.244.255.136/29 | 187.244.255.136 | 187.244.255.137 | 187.244.255.142 | 187.244.255.143 | 6 |
| 3 | 187.244.255.144/29 | 187.244.255.144 | 187.244.255.145 | 187.244.255.150 | 187.244.255.151 | 6 |
| 4 | 187.244.255.152/29 | 187.244.255.152 | 187.244.255.153 | 187.244.255.158 | 187.244.255.159 | 6 |
| 5 | 187.244.255.160/29 | 187.244.255.160 | 187.244.255.161 | 187.244.255.166 | 187.244.255.167 | 6 |
| 6 | 187.244.255.168/29 | 187.244.255.168 | 187.244.255.169 | 187.244.255.174 | 187.244.255.175 | 6 |
| 7 | 187.244.255.176/29 | 187.244.255.176 | 187.244.255.177 | 187.244.255.182 | 187.244.255.183 | 6 |
| 8 | 187.244.255.184/29 | 187.244.255.184 | 187.244.255.185 | 187.244.255.190 | 187.244.255.191 | 6 |
| 9 | 187.244.255.192/29 | 187.244.255.192 | 187.244.255.193 | 187.244.255.198 | 187.244.255.199 | 6 |
| 10 | 187.244.255.200/29 | 187.244.255.200 | 187.244.255.201 | 187.244.255.206 | 187.244.255.207 | 6 |
| 11 | 187.244.255.208/29 | 187.244.255.208 | 187.244.255.209 | 187.244.255.214 | 187.244.255.215 | 6 |
| 12 | 187.244.255.216/29 | 187.244.255.216 | 187.244.255.217 | 187.244.255.222 | 187.244.255.223 | 6 |
| 13 | 187.244.255.224/29 | 187.244.255.224 | 187.244.255.225 | 187.244.255.230 | 187.244.255.231 | 6 |
| 14 | 187.244.255.232/29 | 187.244.255.232 | 187.244.255.233 | 187.244.255.238 | 187.244.255.239 | 6 |
| 15 | 187.244.255.240/29 | 187.244.255.240 | 187.244.255.241 | 187.244.255.246 | 187.244.255.247 | 6 |
| 16 | 187.244.255.248/29 | 187.244.255.248 | 187.244.255.249 | 187.244.255.254 | 187.244.255.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.