31.204.127.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (31.204.127.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 31.204.127.127 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 | 31.204.127.0/25 |
| Network Address | 31.204.127.0 |
| Broadcast Address | 31.204.127.127 |
| 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 | 31.204.127.1 |
| Last Usable IP | 31.204.127.126 |
| Network (Hex) | 0x1FCC7F00 |
| Broadcast (Hex) | 0x1FCC7F7F |
| 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 31.204.127.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 31.204.127.0/26 | 31.204.127.0 | 31.204.127.1 | 31.204.127.62 | 31.204.127.63 | 62 |
| 2 | 31.204.127.64/26 | 31.204.127.64 | 31.204.127.65 | 31.204.127.126 | 31.204.127.127 | 62 |
Split 31.204.127.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 31.204.127.0/27 | 31.204.127.0 | 31.204.127.1 | 31.204.127.30 | 31.204.127.31 | 30 |
| 2 | 31.204.127.32/27 | 31.204.127.32 | 31.204.127.33 | 31.204.127.62 | 31.204.127.63 | 30 |
| 3 | 31.204.127.64/27 | 31.204.127.64 | 31.204.127.65 | 31.204.127.94 | 31.204.127.95 | 30 |
| 4 | 31.204.127.96/27 | 31.204.127.96 | 31.204.127.97 | 31.204.127.126 | 31.204.127.127 | 30 |
Split 31.204.127.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 31.204.127.0/28 | 31.204.127.0 | 31.204.127.1 | 31.204.127.14 | 31.204.127.15 | 14 |
| 2 | 31.204.127.16/28 | 31.204.127.16 | 31.204.127.17 | 31.204.127.30 | 31.204.127.31 | 14 |
| 3 | 31.204.127.32/28 | 31.204.127.32 | 31.204.127.33 | 31.204.127.46 | 31.204.127.47 | 14 |
| 4 | 31.204.127.48/28 | 31.204.127.48 | 31.204.127.49 | 31.204.127.62 | 31.204.127.63 | 14 |
| 5 | 31.204.127.64/28 | 31.204.127.64 | 31.204.127.65 | 31.204.127.78 | 31.204.127.79 | 14 |
| 6 | 31.204.127.80/28 | 31.204.127.80 | 31.204.127.81 | 31.204.127.94 | 31.204.127.95 | 14 |
| 7 | 31.204.127.96/28 | 31.204.127.96 | 31.204.127.97 | 31.204.127.110 | 31.204.127.111 | 14 |
| 8 | 31.204.127.112/28 | 31.204.127.112 | 31.204.127.113 | 31.204.127.126 | 31.204.127.127 | 14 |
Split 31.204.127.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 31.204.127.0/29 | 31.204.127.0 | 31.204.127.1 | 31.204.127.6 | 31.204.127.7 | 6 |
| 2 | 31.204.127.8/29 | 31.204.127.8 | 31.204.127.9 | 31.204.127.14 | 31.204.127.15 | 6 |
| 3 | 31.204.127.16/29 | 31.204.127.16 | 31.204.127.17 | 31.204.127.22 | 31.204.127.23 | 6 |
| 4 | 31.204.127.24/29 | 31.204.127.24 | 31.204.127.25 | 31.204.127.30 | 31.204.127.31 | 6 |
| 5 | 31.204.127.32/29 | 31.204.127.32 | 31.204.127.33 | 31.204.127.38 | 31.204.127.39 | 6 |
| 6 | 31.204.127.40/29 | 31.204.127.40 | 31.204.127.41 | 31.204.127.46 | 31.204.127.47 | 6 |
| 7 | 31.204.127.48/29 | 31.204.127.48 | 31.204.127.49 | 31.204.127.54 | 31.204.127.55 | 6 |
| 8 | 31.204.127.56/29 | 31.204.127.56 | 31.204.127.57 | 31.204.127.62 | 31.204.127.63 | 6 |
| 9 | 31.204.127.64/29 | 31.204.127.64 | 31.204.127.65 | 31.204.127.70 | 31.204.127.71 | 6 |
| 10 | 31.204.127.72/29 | 31.204.127.72 | 31.204.127.73 | 31.204.127.78 | 31.204.127.79 | 6 |
| 11 | 31.204.127.80/29 | 31.204.127.80 | 31.204.127.81 | 31.204.127.86 | 31.204.127.87 | 6 |
| 12 | 31.204.127.88/29 | 31.204.127.88 | 31.204.127.89 | 31.204.127.94 | 31.204.127.95 | 6 |
| 13 | 31.204.127.96/29 | 31.204.127.96 | 31.204.127.97 | 31.204.127.102 | 31.204.127.103 | 6 |
| 14 | 31.204.127.104/29 | 31.204.127.104 | 31.204.127.105 | 31.204.127.110 | 31.204.127.111 | 6 |
| 15 | 31.204.127.112/29 | 31.204.127.112 | 31.204.127.113 | 31.204.127.118 | 31.204.127.119 | 6 |
| 16 | 31.204.127.120/29 | 31.204.127.120 | 31.204.127.121 | 31.204.127.126 | 31.204.127.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.