178.66.122.64/26
PublicClass B — /26 prefix — 62 usable hosts
Network address — the base address of the block (178.66.122.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 178.66.122.127 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 | 178.66.122.64/26 |
| Network Address | 178.66.122.64 |
| Broadcast Address | 178.66.122.127 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class B |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 178.66.122.65 |
| Last Usable IP | 178.66.122.126 |
| Network (Hex) | 0xB2427A40 |
| Broadcast (Hex) | 0xB2427A7F |
| 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 178.66.122.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 178.66.122.64/27 | 178.66.122.64 | 178.66.122.65 | 178.66.122.94 | 178.66.122.95 | 30 |
| 2 | 178.66.122.96/27 | 178.66.122.96 | 178.66.122.97 | 178.66.122.126 | 178.66.122.127 | 30 |
Split 178.66.122.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 178.66.122.64/28 | 178.66.122.64 | 178.66.122.65 | 178.66.122.78 | 178.66.122.79 | 14 |
| 2 | 178.66.122.80/28 | 178.66.122.80 | 178.66.122.81 | 178.66.122.94 | 178.66.122.95 | 14 |
| 3 | 178.66.122.96/28 | 178.66.122.96 | 178.66.122.97 | 178.66.122.110 | 178.66.122.111 | 14 |
| 4 | 178.66.122.112/28 | 178.66.122.112 | 178.66.122.113 | 178.66.122.126 | 178.66.122.127 | 14 |
Split 178.66.122.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 178.66.122.64/29 | 178.66.122.64 | 178.66.122.65 | 178.66.122.70 | 178.66.122.71 | 6 |
| 2 | 178.66.122.72/29 | 178.66.122.72 | 178.66.122.73 | 178.66.122.78 | 178.66.122.79 | 6 |
| 3 | 178.66.122.80/29 | 178.66.122.80 | 178.66.122.81 | 178.66.122.86 | 178.66.122.87 | 6 |
| 4 | 178.66.122.88/29 | 178.66.122.88 | 178.66.122.89 | 178.66.122.94 | 178.66.122.95 | 6 |
| 5 | 178.66.122.96/29 | 178.66.122.96 | 178.66.122.97 | 178.66.122.102 | 178.66.122.103 | 6 |
| 6 | 178.66.122.104/29 | 178.66.122.104 | 178.66.122.105 | 178.66.122.110 | 178.66.122.111 | 6 |
| 7 | 178.66.122.112/29 | 178.66.122.112 | 178.66.122.113 | 178.66.122.118 | 178.66.122.119 | 6 |
| 8 | 178.66.122.120/29 | 178.66.122.120 | 178.66.122.121 | 178.66.122.126 | 178.66.122.127 | 6 |
Split 178.66.122.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 178.66.122.64/30 | 178.66.122.64 | 178.66.122.65 | 178.66.122.66 | 178.66.122.67 | 2 |
| 2 | 178.66.122.68/30 | 178.66.122.68 | 178.66.122.69 | 178.66.122.70 | 178.66.122.71 | 2 |
| 3 | 178.66.122.72/30 | 178.66.122.72 | 178.66.122.73 | 178.66.122.74 | 178.66.122.75 | 2 |
| 4 | 178.66.122.76/30 | 178.66.122.76 | 178.66.122.77 | 178.66.122.78 | 178.66.122.79 | 2 |
| 5 | 178.66.122.80/30 | 178.66.122.80 | 178.66.122.81 | 178.66.122.82 | 178.66.122.83 | 2 |
| 6 | 178.66.122.84/30 | 178.66.122.84 | 178.66.122.85 | 178.66.122.86 | 178.66.122.87 | 2 |
| 7 | 178.66.122.88/30 | 178.66.122.88 | 178.66.122.89 | 178.66.122.90 | 178.66.122.91 | 2 |
| 8 | 178.66.122.92/30 | 178.66.122.92 | 178.66.122.93 | 178.66.122.94 | 178.66.122.95 | 2 |
| 9 | 178.66.122.96/30 | 178.66.122.96 | 178.66.122.97 | 178.66.122.98 | 178.66.122.99 | 2 |
| 10 | 178.66.122.100/30 | 178.66.122.100 | 178.66.122.101 | 178.66.122.102 | 178.66.122.103 | 2 |
| 11 | 178.66.122.104/30 | 178.66.122.104 | 178.66.122.105 | 178.66.122.106 | 178.66.122.107 | 2 |
| 12 | 178.66.122.108/30 | 178.66.122.108 | 178.66.122.109 | 178.66.122.110 | 178.66.122.111 | 2 |
| 13 | 178.66.122.112/30 | 178.66.122.112 | 178.66.122.113 | 178.66.122.114 | 178.66.122.115 | 2 |
| 14 | 178.66.122.116/30 | 178.66.122.116 | 178.66.122.117 | 178.66.122.118 | 178.66.122.119 | 2 |
| 15 | 178.66.122.120/30 | 178.66.122.120 | 178.66.122.121 | 178.66.122.122 | 178.66.122.123 | 2 |
| 16 | 178.66.122.124/30 | 178.66.122.124 | 178.66.122.125 | 178.66.122.126 | 178.66.122.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.