203.231.138.64/26
PublicClass C — /26 prefix — 62 usable hosts
Network address — the base address of the block (203.231.138.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 203.231.138.127 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 203.231.138.64/26 |
| Network Address | 203.231.138.64 |
| Broadcast Address | 203.231.138.127 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class C |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 203.231.138.65 |
| Last Usable IP | 203.231.138.126 |
| Network (Hex) | 0xCBE78A40 |
| Broadcast (Hex) | 0xCBE78A7F |
| Address Type | Public / Globally Routable |
Binary Representation
The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.
Split into Equal Subnets
Split 203.231.138.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 203.231.138.64/27 | 203.231.138.64 | 203.231.138.65 | 203.231.138.94 | 203.231.138.95 | 30 |
| 2 | 203.231.138.96/27 | 203.231.138.96 | 203.231.138.97 | 203.231.138.126 | 203.231.138.127 | 30 |
Split 203.231.138.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 203.231.138.64/28 | 203.231.138.64 | 203.231.138.65 | 203.231.138.78 | 203.231.138.79 | 14 |
| 2 | 203.231.138.80/28 | 203.231.138.80 | 203.231.138.81 | 203.231.138.94 | 203.231.138.95 | 14 |
| 3 | 203.231.138.96/28 | 203.231.138.96 | 203.231.138.97 | 203.231.138.110 | 203.231.138.111 | 14 |
| 4 | 203.231.138.112/28 | 203.231.138.112 | 203.231.138.113 | 203.231.138.126 | 203.231.138.127 | 14 |
Split 203.231.138.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 203.231.138.64/29 | 203.231.138.64 | 203.231.138.65 | 203.231.138.70 | 203.231.138.71 | 6 |
| 2 | 203.231.138.72/29 | 203.231.138.72 | 203.231.138.73 | 203.231.138.78 | 203.231.138.79 | 6 |
| 3 | 203.231.138.80/29 | 203.231.138.80 | 203.231.138.81 | 203.231.138.86 | 203.231.138.87 | 6 |
| 4 | 203.231.138.88/29 | 203.231.138.88 | 203.231.138.89 | 203.231.138.94 | 203.231.138.95 | 6 |
| 5 | 203.231.138.96/29 | 203.231.138.96 | 203.231.138.97 | 203.231.138.102 | 203.231.138.103 | 6 |
| 6 | 203.231.138.104/29 | 203.231.138.104 | 203.231.138.105 | 203.231.138.110 | 203.231.138.111 | 6 |
| 7 | 203.231.138.112/29 | 203.231.138.112 | 203.231.138.113 | 203.231.138.118 | 203.231.138.119 | 6 |
| 8 | 203.231.138.120/29 | 203.231.138.120 | 203.231.138.121 | 203.231.138.126 | 203.231.138.127 | 6 |
Split 203.231.138.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 203.231.138.64/30 | 203.231.138.64 | 203.231.138.65 | 203.231.138.66 | 203.231.138.67 | 2 |
| 2 | 203.231.138.68/30 | 203.231.138.68 | 203.231.138.69 | 203.231.138.70 | 203.231.138.71 | 2 |
| 3 | 203.231.138.72/30 | 203.231.138.72 | 203.231.138.73 | 203.231.138.74 | 203.231.138.75 | 2 |
| 4 | 203.231.138.76/30 | 203.231.138.76 | 203.231.138.77 | 203.231.138.78 | 203.231.138.79 | 2 |
| 5 | 203.231.138.80/30 | 203.231.138.80 | 203.231.138.81 | 203.231.138.82 | 203.231.138.83 | 2 |
| 6 | 203.231.138.84/30 | 203.231.138.84 | 203.231.138.85 | 203.231.138.86 | 203.231.138.87 | 2 |
| 7 | 203.231.138.88/30 | 203.231.138.88 | 203.231.138.89 | 203.231.138.90 | 203.231.138.91 | 2 |
| 8 | 203.231.138.92/30 | 203.231.138.92 | 203.231.138.93 | 203.231.138.94 | 203.231.138.95 | 2 |
| 9 | 203.231.138.96/30 | 203.231.138.96 | 203.231.138.97 | 203.231.138.98 | 203.231.138.99 | 2 |
| 10 | 203.231.138.100/30 | 203.231.138.100 | 203.231.138.101 | 203.231.138.102 | 203.231.138.103 | 2 |
| 11 | 203.231.138.104/30 | 203.231.138.104 | 203.231.138.105 | 203.231.138.106 | 203.231.138.107 | 2 |
| 12 | 203.231.138.108/30 | 203.231.138.108 | 203.231.138.109 | 203.231.138.110 | 203.231.138.111 | 2 |
| 13 | 203.231.138.112/30 | 203.231.138.112 | 203.231.138.113 | 203.231.138.114 | 203.231.138.115 | 2 |
| 14 | 203.231.138.116/30 | 203.231.138.116 | 203.231.138.117 | 203.231.138.118 | 203.231.138.119 | 2 |
| 15 | 203.231.138.120/30 | 203.231.138.120 | 203.231.138.121 | 203.231.138.122 | 203.231.138.123 | 2 |
| 16 | 203.231.138.124/30 | 203.231.138.124 | 203.231.138.125 | 203.231.138.126 | 203.231.138.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.