172.135.23.64/26
PublicClass B — /26 prefix — 62 usable hosts
Network address — the base address of the block (172.135.23.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 172.135.23.127 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 | 172.135.23.64/26 |
| Network Address | 172.135.23.64 |
| Broadcast Address | 172.135.23.127 |
| 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 | 172.135.23.65 |
| Last Usable IP | 172.135.23.126 |
| Network (Hex) | 0xAC871740 |
| Broadcast (Hex) | 0xAC87177F |
| 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 172.135.23.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.135.23.64/27 | 172.135.23.64 | 172.135.23.65 | 172.135.23.94 | 172.135.23.95 | 30 |
| 2 | 172.135.23.96/27 | 172.135.23.96 | 172.135.23.97 | 172.135.23.126 | 172.135.23.127 | 30 |
Split 172.135.23.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.135.23.64/28 | 172.135.23.64 | 172.135.23.65 | 172.135.23.78 | 172.135.23.79 | 14 |
| 2 | 172.135.23.80/28 | 172.135.23.80 | 172.135.23.81 | 172.135.23.94 | 172.135.23.95 | 14 |
| 3 | 172.135.23.96/28 | 172.135.23.96 | 172.135.23.97 | 172.135.23.110 | 172.135.23.111 | 14 |
| 4 | 172.135.23.112/28 | 172.135.23.112 | 172.135.23.113 | 172.135.23.126 | 172.135.23.127 | 14 |
Split 172.135.23.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.135.23.64/29 | 172.135.23.64 | 172.135.23.65 | 172.135.23.70 | 172.135.23.71 | 6 |
| 2 | 172.135.23.72/29 | 172.135.23.72 | 172.135.23.73 | 172.135.23.78 | 172.135.23.79 | 6 |
| 3 | 172.135.23.80/29 | 172.135.23.80 | 172.135.23.81 | 172.135.23.86 | 172.135.23.87 | 6 |
| 4 | 172.135.23.88/29 | 172.135.23.88 | 172.135.23.89 | 172.135.23.94 | 172.135.23.95 | 6 |
| 5 | 172.135.23.96/29 | 172.135.23.96 | 172.135.23.97 | 172.135.23.102 | 172.135.23.103 | 6 |
| 6 | 172.135.23.104/29 | 172.135.23.104 | 172.135.23.105 | 172.135.23.110 | 172.135.23.111 | 6 |
| 7 | 172.135.23.112/29 | 172.135.23.112 | 172.135.23.113 | 172.135.23.118 | 172.135.23.119 | 6 |
| 8 | 172.135.23.120/29 | 172.135.23.120 | 172.135.23.121 | 172.135.23.126 | 172.135.23.127 | 6 |
Split 172.135.23.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.135.23.64/30 | 172.135.23.64 | 172.135.23.65 | 172.135.23.66 | 172.135.23.67 | 2 |
| 2 | 172.135.23.68/30 | 172.135.23.68 | 172.135.23.69 | 172.135.23.70 | 172.135.23.71 | 2 |
| 3 | 172.135.23.72/30 | 172.135.23.72 | 172.135.23.73 | 172.135.23.74 | 172.135.23.75 | 2 |
| 4 | 172.135.23.76/30 | 172.135.23.76 | 172.135.23.77 | 172.135.23.78 | 172.135.23.79 | 2 |
| 5 | 172.135.23.80/30 | 172.135.23.80 | 172.135.23.81 | 172.135.23.82 | 172.135.23.83 | 2 |
| 6 | 172.135.23.84/30 | 172.135.23.84 | 172.135.23.85 | 172.135.23.86 | 172.135.23.87 | 2 |
| 7 | 172.135.23.88/30 | 172.135.23.88 | 172.135.23.89 | 172.135.23.90 | 172.135.23.91 | 2 |
| 8 | 172.135.23.92/30 | 172.135.23.92 | 172.135.23.93 | 172.135.23.94 | 172.135.23.95 | 2 |
| 9 | 172.135.23.96/30 | 172.135.23.96 | 172.135.23.97 | 172.135.23.98 | 172.135.23.99 | 2 |
| 10 | 172.135.23.100/30 | 172.135.23.100 | 172.135.23.101 | 172.135.23.102 | 172.135.23.103 | 2 |
| 11 | 172.135.23.104/30 | 172.135.23.104 | 172.135.23.105 | 172.135.23.106 | 172.135.23.107 | 2 |
| 12 | 172.135.23.108/30 | 172.135.23.108 | 172.135.23.109 | 172.135.23.110 | 172.135.23.111 | 2 |
| 13 | 172.135.23.112/30 | 172.135.23.112 | 172.135.23.113 | 172.135.23.114 | 172.135.23.115 | 2 |
| 14 | 172.135.23.116/30 | 172.135.23.116 | 172.135.23.117 | 172.135.23.118 | 172.135.23.119 | 2 |
| 15 | 172.135.23.120/30 | 172.135.23.120 | 172.135.23.121 | 172.135.23.122 | 172.135.23.123 | 2 |
| 16 | 172.135.23.124/30 | 172.135.23.124 | 172.135.23.125 | 172.135.23.126 | 172.135.23.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.