187.244.172.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (187.244.172.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 187.244.172.255 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 | 187.244.172.128/25 |
| Network Address | 187.244.172.128 |
| Broadcast Address | 187.244.172.255 |
| 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 | 187.244.172.129 |
| Last Usable IP | 187.244.172.254 |
| Network (Hex) | 0xBBF4AC80 |
| Broadcast (Hex) | 0xBBF4ACFF |
| 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 187.244.172.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 187.244.172.128/26 | 187.244.172.128 | 187.244.172.129 | 187.244.172.190 | 187.244.172.191 | 62 |
| 2 | 187.244.172.192/26 | 187.244.172.192 | 187.244.172.193 | 187.244.172.254 | 187.244.172.255 | 62 |
Split 187.244.172.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 187.244.172.128/27 | 187.244.172.128 | 187.244.172.129 | 187.244.172.158 | 187.244.172.159 | 30 |
| 2 | 187.244.172.160/27 | 187.244.172.160 | 187.244.172.161 | 187.244.172.190 | 187.244.172.191 | 30 |
| 3 | 187.244.172.192/27 | 187.244.172.192 | 187.244.172.193 | 187.244.172.222 | 187.244.172.223 | 30 |
| 4 | 187.244.172.224/27 | 187.244.172.224 | 187.244.172.225 | 187.244.172.254 | 187.244.172.255 | 30 |
Split 187.244.172.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 187.244.172.128/28 | 187.244.172.128 | 187.244.172.129 | 187.244.172.142 | 187.244.172.143 | 14 |
| 2 | 187.244.172.144/28 | 187.244.172.144 | 187.244.172.145 | 187.244.172.158 | 187.244.172.159 | 14 |
| 3 | 187.244.172.160/28 | 187.244.172.160 | 187.244.172.161 | 187.244.172.174 | 187.244.172.175 | 14 |
| 4 | 187.244.172.176/28 | 187.244.172.176 | 187.244.172.177 | 187.244.172.190 | 187.244.172.191 | 14 |
| 5 | 187.244.172.192/28 | 187.244.172.192 | 187.244.172.193 | 187.244.172.206 | 187.244.172.207 | 14 |
| 6 | 187.244.172.208/28 | 187.244.172.208 | 187.244.172.209 | 187.244.172.222 | 187.244.172.223 | 14 |
| 7 | 187.244.172.224/28 | 187.244.172.224 | 187.244.172.225 | 187.244.172.238 | 187.244.172.239 | 14 |
| 8 | 187.244.172.240/28 | 187.244.172.240 | 187.244.172.241 | 187.244.172.254 | 187.244.172.255 | 14 |
Split 187.244.172.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 187.244.172.128/29 | 187.244.172.128 | 187.244.172.129 | 187.244.172.134 | 187.244.172.135 | 6 |
| 2 | 187.244.172.136/29 | 187.244.172.136 | 187.244.172.137 | 187.244.172.142 | 187.244.172.143 | 6 |
| 3 | 187.244.172.144/29 | 187.244.172.144 | 187.244.172.145 | 187.244.172.150 | 187.244.172.151 | 6 |
| 4 | 187.244.172.152/29 | 187.244.172.152 | 187.244.172.153 | 187.244.172.158 | 187.244.172.159 | 6 |
| 5 | 187.244.172.160/29 | 187.244.172.160 | 187.244.172.161 | 187.244.172.166 | 187.244.172.167 | 6 |
| 6 | 187.244.172.168/29 | 187.244.172.168 | 187.244.172.169 | 187.244.172.174 | 187.244.172.175 | 6 |
| 7 | 187.244.172.176/29 | 187.244.172.176 | 187.244.172.177 | 187.244.172.182 | 187.244.172.183 | 6 |
| 8 | 187.244.172.184/29 | 187.244.172.184 | 187.244.172.185 | 187.244.172.190 | 187.244.172.191 | 6 |
| 9 | 187.244.172.192/29 | 187.244.172.192 | 187.244.172.193 | 187.244.172.198 | 187.244.172.199 | 6 |
| 10 | 187.244.172.200/29 | 187.244.172.200 | 187.244.172.201 | 187.244.172.206 | 187.244.172.207 | 6 |
| 11 | 187.244.172.208/29 | 187.244.172.208 | 187.244.172.209 | 187.244.172.214 | 187.244.172.215 | 6 |
| 12 | 187.244.172.216/29 | 187.244.172.216 | 187.244.172.217 | 187.244.172.222 | 187.244.172.223 | 6 |
| 13 | 187.244.172.224/29 | 187.244.172.224 | 187.244.172.225 | 187.244.172.230 | 187.244.172.231 | 6 |
| 14 | 187.244.172.232/29 | 187.244.172.232 | 187.244.172.233 | 187.244.172.238 | 187.244.172.239 | 6 |
| 15 | 187.244.172.240/29 | 187.244.172.240 | 187.244.172.241 | 187.244.172.246 | 187.244.172.247 | 6 |
| 16 | 187.244.172.248/29 | 187.244.172.248 | 187.244.172.249 | 187.244.172.254 | 187.244.172.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.