57.252.103.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (57.252.103.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 57.252.103.127 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 | 57.252.103.0/25 |
| Network Address | 57.252.103.0 |
| Broadcast Address | 57.252.103.127 |
| 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 | 57.252.103.1 |
| Last Usable IP | 57.252.103.126 |
| Network (Hex) | 0x39FC6700 |
| Broadcast (Hex) | 0x39FC677F |
| 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 57.252.103.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 57.252.103.0/26 | 57.252.103.0 | 57.252.103.1 | 57.252.103.62 | 57.252.103.63 | 62 |
| 2 | 57.252.103.64/26 | 57.252.103.64 | 57.252.103.65 | 57.252.103.126 | 57.252.103.127 | 62 |
Split 57.252.103.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 57.252.103.0/27 | 57.252.103.0 | 57.252.103.1 | 57.252.103.30 | 57.252.103.31 | 30 |
| 2 | 57.252.103.32/27 | 57.252.103.32 | 57.252.103.33 | 57.252.103.62 | 57.252.103.63 | 30 |
| 3 | 57.252.103.64/27 | 57.252.103.64 | 57.252.103.65 | 57.252.103.94 | 57.252.103.95 | 30 |
| 4 | 57.252.103.96/27 | 57.252.103.96 | 57.252.103.97 | 57.252.103.126 | 57.252.103.127 | 30 |
Split 57.252.103.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 57.252.103.0/28 | 57.252.103.0 | 57.252.103.1 | 57.252.103.14 | 57.252.103.15 | 14 |
| 2 | 57.252.103.16/28 | 57.252.103.16 | 57.252.103.17 | 57.252.103.30 | 57.252.103.31 | 14 |
| 3 | 57.252.103.32/28 | 57.252.103.32 | 57.252.103.33 | 57.252.103.46 | 57.252.103.47 | 14 |
| 4 | 57.252.103.48/28 | 57.252.103.48 | 57.252.103.49 | 57.252.103.62 | 57.252.103.63 | 14 |
| 5 | 57.252.103.64/28 | 57.252.103.64 | 57.252.103.65 | 57.252.103.78 | 57.252.103.79 | 14 |
| 6 | 57.252.103.80/28 | 57.252.103.80 | 57.252.103.81 | 57.252.103.94 | 57.252.103.95 | 14 |
| 7 | 57.252.103.96/28 | 57.252.103.96 | 57.252.103.97 | 57.252.103.110 | 57.252.103.111 | 14 |
| 8 | 57.252.103.112/28 | 57.252.103.112 | 57.252.103.113 | 57.252.103.126 | 57.252.103.127 | 14 |
Split 57.252.103.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 57.252.103.0/29 | 57.252.103.0 | 57.252.103.1 | 57.252.103.6 | 57.252.103.7 | 6 |
| 2 | 57.252.103.8/29 | 57.252.103.8 | 57.252.103.9 | 57.252.103.14 | 57.252.103.15 | 6 |
| 3 | 57.252.103.16/29 | 57.252.103.16 | 57.252.103.17 | 57.252.103.22 | 57.252.103.23 | 6 |
| 4 | 57.252.103.24/29 | 57.252.103.24 | 57.252.103.25 | 57.252.103.30 | 57.252.103.31 | 6 |
| 5 | 57.252.103.32/29 | 57.252.103.32 | 57.252.103.33 | 57.252.103.38 | 57.252.103.39 | 6 |
| 6 | 57.252.103.40/29 | 57.252.103.40 | 57.252.103.41 | 57.252.103.46 | 57.252.103.47 | 6 |
| 7 | 57.252.103.48/29 | 57.252.103.48 | 57.252.103.49 | 57.252.103.54 | 57.252.103.55 | 6 |
| 8 | 57.252.103.56/29 | 57.252.103.56 | 57.252.103.57 | 57.252.103.62 | 57.252.103.63 | 6 |
| 9 | 57.252.103.64/29 | 57.252.103.64 | 57.252.103.65 | 57.252.103.70 | 57.252.103.71 | 6 |
| 10 | 57.252.103.72/29 | 57.252.103.72 | 57.252.103.73 | 57.252.103.78 | 57.252.103.79 | 6 |
| 11 | 57.252.103.80/29 | 57.252.103.80 | 57.252.103.81 | 57.252.103.86 | 57.252.103.87 | 6 |
| 12 | 57.252.103.88/29 | 57.252.103.88 | 57.252.103.89 | 57.252.103.94 | 57.252.103.95 | 6 |
| 13 | 57.252.103.96/29 | 57.252.103.96 | 57.252.103.97 | 57.252.103.102 | 57.252.103.103 | 6 |
| 14 | 57.252.103.104/29 | 57.252.103.104 | 57.252.103.105 | 57.252.103.110 | 57.252.103.111 | 6 |
| 15 | 57.252.103.112/29 | 57.252.103.112 | 57.252.103.113 | 57.252.103.118 | 57.252.103.119 | 6 |
| 16 | 57.252.103.120/29 | 57.252.103.120 | 57.252.103.121 | 57.252.103.126 | 57.252.103.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.