31.235.61.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (31.235.61.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 31.235.61.127 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 | 31.235.61.0/25 |
| Network Address | 31.235.61.0 |
| Broadcast Address | 31.235.61.127 |
| 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 | 31.235.61.1 |
| Last Usable IP | 31.235.61.126 |
| Network (Hex) | 0x1FEB3D00 |
| Broadcast (Hex) | 0x1FEB3D7F |
| 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 31.235.61.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 31.235.61.0/26 | 31.235.61.0 | 31.235.61.1 | 31.235.61.62 | 31.235.61.63 | 62 |
| 2 | 31.235.61.64/26 | 31.235.61.64 | 31.235.61.65 | 31.235.61.126 | 31.235.61.127 | 62 |
Split 31.235.61.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 31.235.61.0/27 | 31.235.61.0 | 31.235.61.1 | 31.235.61.30 | 31.235.61.31 | 30 |
| 2 | 31.235.61.32/27 | 31.235.61.32 | 31.235.61.33 | 31.235.61.62 | 31.235.61.63 | 30 |
| 3 | 31.235.61.64/27 | 31.235.61.64 | 31.235.61.65 | 31.235.61.94 | 31.235.61.95 | 30 |
| 4 | 31.235.61.96/27 | 31.235.61.96 | 31.235.61.97 | 31.235.61.126 | 31.235.61.127 | 30 |
Split 31.235.61.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 31.235.61.0/28 | 31.235.61.0 | 31.235.61.1 | 31.235.61.14 | 31.235.61.15 | 14 |
| 2 | 31.235.61.16/28 | 31.235.61.16 | 31.235.61.17 | 31.235.61.30 | 31.235.61.31 | 14 |
| 3 | 31.235.61.32/28 | 31.235.61.32 | 31.235.61.33 | 31.235.61.46 | 31.235.61.47 | 14 |
| 4 | 31.235.61.48/28 | 31.235.61.48 | 31.235.61.49 | 31.235.61.62 | 31.235.61.63 | 14 |
| 5 | 31.235.61.64/28 | 31.235.61.64 | 31.235.61.65 | 31.235.61.78 | 31.235.61.79 | 14 |
| 6 | 31.235.61.80/28 | 31.235.61.80 | 31.235.61.81 | 31.235.61.94 | 31.235.61.95 | 14 |
| 7 | 31.235.61.96/28 | 31.235.61.96 | 31.235.61.97 | 31.235.61.110 | 31.235.61.111 | 14 |
| 8 | 31.235.61.112/28 | 31.235.61.112 | 31.235.61.113 | 31.235.61.126 | 31.235.61.127 | 14 |
Split 31.235.61.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 31.235.61.0/29 | 31.235.61.0 | 31.235.61.1 | 31.235.61.6 | 31.235.61.7 | 6 |
| 2 | 31.235.61.8/29 | 31.235.61.8 | 31.235.61.9 | 31.235.61.14 | 31.235.61.15 | 6 |
| 3 | 31.235.61.16/29 | 31.235.61.16 | 31.235.61.17 | 31.235.61.22 | 31.235.61.23 | 6 |
| 4 | 31.235.61.24/29 | 31.235.61.24 | 31.235.61.25 | 31.235.61.30 | 31.235.61.31 | 6 |
| 5 | 31.235.61.32/29 | 31.235.61.32 | 31.235.61.33 | 31.235.61.38 | 31.235.61.39 | 6 |
| 6 | 31.235.61.40/29 | 31.235.61.40 | 31.235.61.41 | 31.235.61.46 | 31.235.61.47 | 6 |
| 7 | 31.235.61.48/29 | 31.235.61.48 | 31.235.61.49 | 31.235.61.54 | 31.235.61.55 | 6 |
| 8 | 31.235.61.56/29 | 31.235.61.56 | 31.235.61.57 | 31.235.61.62 | 31.235.61.63 | 6 |
| 9 | 31.235.61.64/29 | 31.235.61.64 | 31.235.61.65 | 31.235.61.70 | 31.235.61.71 | 6 |
| 10 | 31.235.61.72/29 | 31.235.61.72 | 31.235.61.73 | 31.235.61.78 | 31.235.61.79 | 6 |
| 11 | 31.235.61.80/29 | 31.235.61.80 | 31.235.61.81 | 31.235.61.86 | 31.235.61.87 | 6 |
| 12 | 31.235.61.88/29 | 31.235.61.88 | 31.235.61.89 | 31.235.61.94 | 31.235.61.95 | 6 |
| 13 | 31.235.61.96/29 | 31.235.61.96 | 31.235.61.97 | 31.235.61.102 | 31.235.61.103 | 6 |
| 14 | 31.235.61.104/29 | 31.235.61.104 | 31.235.61.105 | 31.235.61.110 | 31.235.61.111 | 6 |
| 15 | 31.235.61.112/29 | 31.235.61.112 | 31.235.61.113 | 31.235.61.118 | 31.235.61.119 | 6 |
| 16 | 31.235.61.120/29 | 31.235.61.120 | 31.235.61.121 | 31.235.61.126 | 31.235.61.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.