57.252.217.128/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (57.252.217.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 57.252.217.255 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 | 57.252.217.128/25 |
| Network Address | 57.252.217.128 |
| Broadcast Address | 57.252.217.255 |
| 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 | 57.252.217.129 |
| Last Usable IP | 57.252.217.254 |
| Network (Hex) | 0x39FCD980 |
| Broadcast (Hex) | 0x39FCD9FF |
| 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 57.252.217.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 57.252.217.128/26 | 57.252.217.128 | 57.252.217.129 | 57.252.217.190 | 57.252.217.191 | 62 |
| 2 | 57.252.217.192/26 | 57.252.217.192 | 57.252.217.193 | 57.252.217.254 | 57.252.217.255 | 62 |
Split 57.252.217.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 57.252.217.128/27 | 57.252.217.128 | 57.252.217.129 | 57.252.217.158 | 57.252.217.159 | 30 |
| 2 | 57.252.217.160/27 | 57.252.217.160 | 57.252.217.161 | 57.252.217.190 | 57.252.217.191 | 30 |
| 3 | 57.252.217.192/27 | 57.252.217.192 | 57.252.217.193 | 57.252.217.222 | 57.252.217.223 | 30 |
| 4 | 57.252.217.224/27 | 57.252.217.224 | 57.252.217.225 | 57.252.217.254 | 57.252.217.255 | 30 |
Split 57.252.217.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 57.252.217.128/28 | 57.252.217.128 | 57.252.217.129 | 57.252.217.142 | 57.252.217.143 | 14 |
| 2 | 57.252.217.144/28 | 57.252.217.144 | 57.252.217.145 | 57.252.217.158 | 57.252.217.159 | 14 |
| 3 | 57.252.217.160/28 | 57.252.217.160 | 57.252.217.161 | 57.252.217.174 | 57.252.217.175 | 14 |
| 4 | 57.252.217.176/28 | 57.252.217.176 | 57.252.217.177 | 57.252.217.190 | 57.252.217.191 | 14 |
| 5 | 57.252.217.192/28 | 57.252.217.192 | 57.252.217.193 | 57.252.217.206 | 57.252.217.207 | 14 |
| 6 | 57.252.217.208/28 | 57.252.217.208 | 57.252.217.209 | 57.252.217.222 | 57.252.217.223 | 14 |
| 7 | 57.252.217.224/28 | 57.252.217.224 | 57.252.217.225 | 57.252.217.238 | 57.252.217.239 | 14 |
| 8 | 57.252.217.240/28 | 57.252.217.240 | 57.252.217.241 | 57.252.217.254 | 57.252.217.255 | 14 |
Split 57.252.217.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 57.252.217.128/29 | 57.252.217.128 | 57.252.217.129 | 57.252.217.134 | 57.252.217.135 | 6 |
| 2 | 57.252.217.136/29 | 57.252.217.136 | 57.252.217.137 | 57.252.217.142 | 57.252.217.143 | 6 |
| 3 | 57.252.217.144/29 | 57.252.217.144 | 57.252.217.145 | 57.252.217.150 | 57.252.217.151 | 6 |
| 4 | 57.252.217.152/29 | 57.252.217.152 | 57.252.217.153 | 57.252.217.158 | 57.252.217.159 | 6 |
| 5 | 57.252.217.160/29 | 57.252.217.160 | 57.252.217.161 | 57.252.217.166 | 57.252.217.167 | 6 |
| 6 | 57.252.217.168/29 | 57.252.217.168 | 57.252.217.169 | 57.252.217.174 | 57.252.217.175 | 6 |
| 7 | 57.252.217.176/29 | 57.252.217.176 | 57.252.217.177 | 57.252.217.182 | 57.252.217.183 | 6 |
| 8 | 57.252.217.184/29 | 57.252.217.184 | 57.252.217.185 | 57.252.217.190 | 57.252.217.191 | 6 |
| 9 | 57.252.217.192/29 | 57.252.217.192 | 57.252.217.193 | 57.252.217.198 | 57.252.217.199 | 6 |
| 10 | 57.252.217.200/29 | 57.252.217.200 | 57.252.217.201 | 57.252.217.206 | 57.252.217.207 | 6 |
| 11 | 57.252.217.208/29 | 57.252.217.208 | 57.252.217.209 | 57.252.217.214 | 57.252.217.215 | 6 |
| 12 | 57.252.217.216/29 | 57.252.217.216 | 57.252.217.217 | 57.252.217.222 | 57.252.217.223 | 6 |
| 13 | 57.252.217.224/29 | 57.252.217.224 | 57.252.217.225 | 57.252.217.230 | 57.252.217.231 | 6 |
| 14 | 57.252.217.232/29 | 57.252.217.232 | 57.252.217.233 | 57.252.217.238 | 57.252.217.239 | 6 |
| 15 | 57.252.217.240/29 | 57.252.217.240 | 57.252.217.241 | 57.252.217.246 | 57.252.217.247 | 6 |
| 16 | 57.252.217.248/29 | 57.252.217.248 | 57.252.217.249 | 57.252.217.254 | 57.252.217.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.