203.0.5.64/26
PublicClass C — /26 prefix — 62 usable hosts
Network address — the base address of the block (203.0.5.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 203.0.5.127 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 | 203.0.5.64/26 |
| Network Address | 203.0.5.64 |
| Broadcast Address | 203.0.5.127 |
| 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 | 203.0.5.65 |
| Last Usable IP | 203.0.5.126 |
| Network (Hex) | 0xCB000540 |
| Broadcast (Hex) | 0xCB00057F |
| 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 203.0.5.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 203.0.5.64/27 | 203.0.5.64 | 203.0.5.65 | 203.0.5.94 | 203.0.5.95 | 30 |
| 2 | 203.0.5.96/27 | 203.0.5.96 | 203.0.5.97 | 203.0.5.126 | 203.0.5.127 | 30 |
Split 203.0.5.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 203.0.5.64/28 | 203.0.5.64 | 203.0.5.65 | 203.0.5.78 | 203.0.5.79 | 14 |
| 2 | 203.0.5.80/28 | 203.0.5.80 | 203.0.5.81 | 203.0.5.94 | 203.0.5.95 | 14 |
| 3 | 203.0.5.96/28 | 203.0.5.96 | 203.0.5.97 | 203.0.5.110 | 203.0.5.111 | 14 |
| 4 | 203.0.5.112/28 | 203.0.5.112 | 203.0.5.113 | 203.0.5.126 | 203.0.5.127 | 14 |
Split 203.0.5.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 203.0.5.64/29 | 203.0.5.64 | 203.0.5.65 | 203.0.5.70 | 203.0.5.71 | 6 |
| 2 | 203.0.5.72/29 | 203.0.5.72 | 203.0.5.73 | 203.0.5.78 | 203.0.5.79 | 6 |
| 3 | 203.0.5.80/29 | 203.0.5.80 | 203.0.5.81 | 203.0.5.86 | 203.0.5.87 | 6 |
| 4 | 203.0.5.88/29 | 203.0.5.88 | 203.0.5.89 | 203.0.5.94 | 203.0.5.95 | 6 |
| 5 | 203.0.5.96/29 | 203.0.5.96 | 203.0.5.97 | 203.0.5.102 | 203.0.5.103 | 6 |
| 6 | 203.0.5.104/29 | 203.0.5.104 | 203.0.5.105 | 203.0.5.110 | 203.0.5.111 | 6 |
| 7 | 203.0.5.112/29 | 203.0.5.112 | 203.0.5.113 | 203.0.5.118 | 203.0.5.119 | 6 |
| 8 | 203.0.5.120/29 | 203.0.5.120 | 203.0.5.121 | 203.0.5.126 | 203.0.5.127 | 6 |
Split 203.0.5.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 203.0.5.64/30 | 203.0.5.64 | 203.0.5.65 | 203.0.5.66 | 203.0.5.67 | 2 |
| 2 | 203.0.5.68/30 | 203.0.5.68 | 203.0.5.69 | 203.0.5.70 | 203.0.5.71 | 2 |
| 3 | 203.0.5.72/30 | 203.0.5.72 | 203.0.5.73 | 203.0.5.74 | 203.0.5.75 | 2 |
| 4 | 203.0.5.76/30 | 203.0.5.76 | 203.0.5.77 | 203.0.5.78 | 203.0.5.79 | 2 |
| 5 | 203.0.5.80/30 | 203.0.5.80 | 203.0.5.81 | 203.0.5.82 | 203.0.5.83 | 2 |
| 6 | 203.0.5.84/30 | 203.0.5.84 | 203.0.5.85 | 203.0.5.86 | 203.0.5.87 | 2 |
| 7 | 203.0.5.88/30 | 203.0.5.88 | 203.0.5.89 | 203.0.5.90 | 203.0.5.91 | 2 |
| 8 | 203.0.5.92/30 | 203.0.5.92 | 203.0.5.93 | 203.0.5.94 | 203.0.5.95 | 2 |
| 9 | 203.0.5.96/30 | 203.0.5.96 | 203.0.5.97 | 203.0.5.98 | 203.0.5.99 | 2 |
| 10 | 203.0.5.100/30 | 203.0.5.100 | 203.0.5.101 | 203.0.5.102 | 203.0.5.103 | 2 |
| 11 | 203.0.5.104/30 | 203.0.5.104 | 203.0.5.105 | 203.0.5.106 | 203.0.5.107 | 2 |
| 12 | 203.0.5.108/30 | 203.0.5.108 | 203.0.5.109 | 203.0.5.110 | 203.0.5.111 | 2 |
| 13 | 203.0.5.112/30 | 203.0.5.112 | 203.0.5.113 | 203.0.5.114 | 203.0.5.115 | 2 |
| 14 | 203.0.5.116/30 | 203.0.5.116 | 203.0.5.117 | 203.0.5.118 | 203.0.5.119 | 2 |
| 15 | 203.0.5.120/30 | 203.0.5.120 | 203.0.5.121 | 203.0.5.122 | 203.0.5.123 | 2 |
| 16 | 203.0.5.124/30 | 203.0.5.124 | 203.0.5.125 | 203.0.5.126 | 203.0.5.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.