25.181.225.128/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (25.181.225.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 25.181.225.255 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 | 25.181.225.128/25 |
| Network Address | 25.181.225.128 |
| Broadcast Address | 25.181.225.255 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class A |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 25.181.225.129 |
| Last Usable IP | 25.181.225.254 |
| Network (Hex) | 0x19B5E180 |
| Broadcast (Hex) | 0x19B5E1FF |
| 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 25.181.225.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 25.181.225.128/26 | 25.181.225.128 | 25.181.225.129 | 25.181.225.190 | 25.181.225.191 | 62 |
| 2 | 25.181.225.192/26 | 25.181.225.192 | 25.181.225.193 | 25.181.225.254 | 25.181.225.255 | 62 |
Split 25.181.225.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 25.181.225.128/27 | 25.181.225.128 | 25.181.225.129 | 25.181.225.158 | 25.181.225.159 | 30 |
| 2 | 25.181.225.160/27 | 25.181.225.160 | 25.181.225.161 | 25.181.225.190 | 25.181.225.191 | 30 |
| 3 | 25.181.225.192/27 | 25.181.225.192 | 25.181.225.193 | 25.181.225.222 | 25.181.225.223 | 30 |
| 4 | 25.181.225.224/27 | 25.181.225.224 | 25.181.225.225 | 25.181.225.254 | 25.181.225.255 | 30 |
Split 25.181.225.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 25.181.225.128/28 | 25.181.225.128 | 25.181.225.129 | 25.181.225.142 | 25.181.225.143 | 14 |
| 2 | 25.181.225.144/28 | 25.181.225.144 | 25.181.225.145 | 25.181.225.158 | 25.181.225.159 | 14 |
| 3 | 25.181.225.160/28 | 25.181.225.160 | 25.181.225.161 | 25.181.225.174 | 25.181.225.175 | 14 |
| 4 | 25.181.225.176/28 | 25.181.225.176 | 25.181.225.177 | 25.181.225.190 | 25.181.225.191 | 14 |
| 5 | 25.181.225.192/28 | 25.181.225.192 | 25.181.225.193 | 25.181.225.206 | 25.181.225.207 | 14 |
| 6 | 25.181.225.208/28 | 25.181.225.208 | 25.181.225.209 | 25.181.225.222 | 25.181.225.223 | 14 |
| 7 | 25.181.225.224/28 | 25.181.225.224 | 25.181.225.225 | 25.181.225.238 | 25.181.225.239 | 14 |
| 8 | 25.181.225.240/28 | 25.181.225.240 | 25.181.225.241 | 25.181.225.254 | 25.181.225.255 | 14 |
Split 25.181.225.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 25.181.225.128/29 | 25.181.225.128 | 25.181.225.129 | 25.181.225.134 | 25.181.225.135 | 6 |
| 2 | 25.181.225.136/29 | 25.181.225.136 | 25.181.225.137 | 25.181.225.142 | 25.181.225.143 | 6 |
| 3 | 25.181.225.144/29 | 25.181.225.144 | 25.181.225.145 | 25.181.225.150 | 25.181.225.151 | 6 |
| 4 | 25.181.225.152/29 | 25.181.225.152 | 25.181.225.153 | 25.181.225.158 | 25.181.225.159 | 6 |
| 5 | 25.181.225.160/29 | 25.181.225.160 | 25.181.225.161 | 25.181.225.166 | 25.181.225.167 | 6 |
| 6 | 25.181.225.168/29 | 25.181.225.168 | 25.181.225.169 | 25.181.225.174 | 25.181.225.175 | 6 |
| 7 | 25.181.225.176/29 | 25.181.225.176 | 25.181.225.177 | 25.181.225.182 | 25.181.225.183 | 6 |
| 8 | 25.181.225.184/29 | 25.181.225.184 | 25.181.225.185 | 25.181.225.190 | 25.181.225.191 | 6 |
| 9 | 25.181.225.192/29 | 25.181.225.192 | 25.181.225.193 | 25.181.225.198 | 25.181.225.199 | 6 |
| 10 | 25.181.225.200/29 | 25.181.225.200 | 25.181.225.201 | 25.181.225.206 | 25.181.225.207 | 6 |
| 11 | 25.181.225.208/29 | 25.181.225.208 | 25.181.225.209 | 25.181.225.214 | 25.181.225.215 | 6 |
| 12 | 25.181.225.216/29 | 25.181.225.216 | 25.181.225.217 | 25.181.225.222 | 25.181.225.223 | 6 |
| 13 | 25.181.225.224/29 | 25.181.225.224 | 25.181.225.225 | 25.181.225.230 | 25.181.225.231 | 6 |
| 14 | 25.181.225.232/29 | 25.181.225.232 | 25.181.225.233 | 25.181.225.238 | 25.181.225.239 | 6 |
| 15 | 25.181.225.240/29 | 25.181.225.240 | 25.181.225.241 | 25.181.225.246 | 25.181.225.247 | 6 |
| 16 | 25.181.225.248/29 | 25.181.225.248 | 25.181.225.249 | 25.181.225.254 | 25.181.225.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.