11.81.206.64/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (11.81.206.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 11.81.206.127 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 | 11.81.206.64/26 |
| Network Address | 11.81.206.64 |
| Broadcast Address | 11.81.206.127 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class A |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 11.81.206.65 |
| Last Usable IP | 11.81.206.126 |
| Network (Hex) | 0x0B51CE40 |
| Broadcast (Hex) | 0x0B51CE7F |
| 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 11.81.206.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 11.81.206.64/27 | 11.81.206.64 | 11.81.206.65 | 11.81.206.94 | 11.81.206.95 | 30 |
| 2 | 11.81.206.96/27 | 11.81.206.96 | 11.81.206.97 | 11.81.206.126 | 11.81.206.127 | 30 |
Split 11.81.206.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 11.81.206.64/28 | 11.81.206.64 | 11.81.206.65 | 11.81.206.78 | 11.81.206.79 | 14 |
| 2 | 11.81.206.80/28 | 11.81.206.80 | 11.81.206.81 | 11.81.206.94 | 11.81.206.95 | 14 |
| 3 | 11.81.206.96/28 | 11.81.206.96 | 11.81.206.97 | 11.81.206.110 | 11.81.206.111 | 14 |
| 4 | 11.81.206.112/28 | 11.81.206.112 | 11.81.206.113 | 11.81.206.126 | 11.81.206.127 | 14 |
Split 11.81.206.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 11.81.206.64/29 | 11.81.206.64 | 11.81.206.65 | 11.81.206.70 | 11.81.206.71 | 6 |
| 2 | 11.81.206.72/29 | 11.81.206.72 | 11.81.206.73 | 11.81.206.78 | 11.81.206.79 | 6 |
| 3 | 11.81.206.80/29 | 11.81.206.80 | 11.81.206.81 | 11.81.206.86 | 11.81.206.87 | 6 |
| 4 | 11.81.206.88/29 | 11.81.206.88 | 11.81.206.89 | 11.81.206.94 | 11.81.206.95 | 6 |
| 5 | 11.81.206.96/29 | 11.81.206.96 | 11.81.206.97 | 11.81.206.102 | 11.81.206.103 | 6 |
| 6 | 11.81.206.104/29 | 11.81.206.104 | 11.81.206.105 | 11.81.206.110 | 11.81.206.111 | 6 |
| 7 | 11.81.206.112/29 | 11.81.206.112 | 11.81.206.113 | 11.81.206.118 | 11.81.206.119 | 6 |
| 8 | 11.81.206.120/29 | 11.81.206.120 | 11.81.206.121 | 11.81.206.126 | 11.81.206.127 | 6 |
Split 11.81.206.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 11.81.206.64/30 | 11.81.206.64 | 11.81.206.65 | 11.81.206.66 | 11.81.206.67 | 2 |
| 2 | 11.81.206.68/30 | 11.81.206.68 | 11.81.206.69 | 11.81.206.70 | 11.81.206.71 | 2 |
| 3 | 11.81.206.72/30 | 11.81.206.72 | 11.81.206.73 | 11.81.206.74 | 11.81.206.75 | 2 |
| 4 | 11.81.206.76/30 | 11.81.206.76 | 11.81.206.77 | 11.81.206.78 | 11.81.206.79 | 2 |
| 5 | 11.81.206.80/30 | 11.81.206.80 | 11.81.206.81 | 11.81.206.82 | 11.81.206.83 | 2 |
| 6 | 11.81.206.84/30 | 11.81.206.84 | 11.81.206.85 | 11.81.206.86 | 11.81.206.87 | 2 |
| 7 | 11.81.206.88/30 | 11.81.206.88 | 11.81.206.89 | 11.81.206.90 | 11.81.206.91 | 2 |
| 8 | 11.81.206.92/30 | 11.81.206.92 | 11.81.206.93 | 11.81.206.94 | 11.81.206.95 | 2 |
| 9 | 11.81.206.96/30 | 11.81.206.96 | 11.81.206.97 | 11.81.206.98 | 11.81.206.99 | 2 |
| 10 | 11.81.206.100/30 | 11.81.206.100 | 11.81.206.101 | 11.81.206.102 | 11.81.206.103 | 2 |
| 11 | 11.81.206.104/30 | 11.81.206.104 | 11.81.206.105 | 11.81.206.106 | 11.81.206.107 | 2 |
| 12 | 11.81.206.108/30 | 11.81.206.108 | 11.81.206.109 | 11.81.206.110 | 11.81.206.111 | 2 |
| 13 | 11.81.206.112/30 | 11.81.206.112 | 11.81.206.113 | 11.81.206.114 | 11.81.206.115 | 2 |
| 14 | 11.81.206.116/30 | 11.81.206.116 | 11.81.206.117 | 11.81.206.118 | 11.81.206.119 | 2 |
| 15 | 11.81.206.120/30 | 11.81.206.120 | 11.81.206.121 | 11.81.206.122 | 11.81.206.123 | 2 |
| 16 | 11.81.206.124/30 | 11.81.206.124 | 11.81.206.125 | 11.81.206.126 | 11.81.206.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.