171.81.45.0/26
PublicClass B — /26 prefix — 62 usable hosts
Network address — the base address of the block (171.81.45.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 171.81.45.63 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 | 171.81.45.0/26 |
| Network Address | 171.81.45.0 |
| Broadcast Address | 171.81.45.63 |
| 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 | 171.81.45.1 |
| Last Usable IP | 171.81.45.62 |
| Network (Hex) | 0xAB512D00 |
| Broadcast (Hex) | 0xAB512D3F |
| 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 171.81.45.0/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 171.81.45.0/27 | 171.81.45.0 | 171.81.45.1 | 171.81.45.30 | 171.81.45.31 | 30 |
| 2 | 171.81.45.32/27 | 171.81.45.32 | 171.81.45.33 | 171.81.45.62 | 171.81.45.63 | 30 |
Split 171.81.45.0/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 171.81.45.0/28 | 171.81.45.0 | 171.81.45.1 | 171.81.45.14 | 171.81.45.15 | 14 |
| 2 | 171.81.45.16/28 | 171.81.45.16 | 171.81.45.17 | 171.81.45.30 | 171.81.45.31 | 14 |
| 3 | 171.81.45.32/28 | 171.81.45.32 | 171.81.45.33 | 171.81.45.46 | 171.81.45.47 | 14 |
| 4 | 171.81.45.48/28 | 171.81.45.48 | 171.81.45.49 | 171.81.45.62 | 171.81.45.63 | 14 |
Split 171.81.45.0/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 171.81.45.0/29 | 171.81.45.0 | 171.81.45.1 | 171.81.45.6 | 171.81.45.7 | 6 |
| 2 | 171.81.45.8/29 | 171.81.45.8 | 171.81.45.9 | 171.81.45.14 | 171.81.45.15 | 6 |
| 3 | 171.81.45.16/29 | 171.81.45.16 | 171.81.45.17 | 171.81.45.22 | 171.81.45.23 | 6 |
| 4 | 171.81.45.24/29 | 171.81.45.24 | 171.81.45.25 | 171.81.45.30 | 171.81.45.31 | 6 |
| 5 | 171.81.45.32/29 | 171.81.45.32 | 171.81.45.33 | 171.81.45.38 | 171.81.45.39 | 6 |
| 6 | 171.81.45.40/29 | 171.81.45.40 | 171.81.45.41 | 171.81.45.46 | 171.81.45.47 | 6 |
| 7 | 171.81.45.48/29 | 171.81.45.48 | 171.81.45.49 | 171.81.45.54 | 171.81.45.55 | 6 |
| 8 | 171.81.45.56/29 | 171.81.45.56 | 171.81.45.57 | 171.81.45.62 | 171.81.45.63 | 6 |
Split 171.81.45.0/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 171.81.45.0/30 | 171.81.45.0 | 171.81.45.1 | 171.81.45.2 | 171.81.45.3 | 2 |
| 2 | 171.81.45.4/30 | 171.81.45.4 | 171.81.45.5 | 171.81.45.6 | 171.81.45.7 | 2 |
| 3 | 171.81.45.8/30 | 171.81.45.8 | 171.81.45.9 | 171.81.45.10 | 171.81.45.11 | 2 |
| 4 | 171.81.45.12/30 | 171.81.45.12 | 171.81.45.13 | 171.81.45.14 | 171.81.45.15 | 2 |
| 5 | 171.81.45.16/30 | 171.81.45.16 | 171.81.45.17 | 171.81.45.18 | 171.81.45.19 | 2 |
| 6 | 171.81.45.20/30 | 171.81.45.20 | 171.81.45.21 | 171.81.45.22 | 171.81.45.23 | 2 |
| 7 | 171.81.45.24/30 | 171.81.45.24 | 171.81.45.25 | 171.81.45.26 | 171.81.45.27 | 2 |
| 8 | 171.81.45.28/30 | 171.81.45.28 | 171.81.45.29 | 171.81.45.30 | 171.81.45.31 | 2 |
| 9 | 171.81.45.32/30 | 171.81.45.32 | 171.81.45.33 | 171.81.45.34 | 171.81.45.35 | 2 |
| 10 | 171.81.45.36/30 | 171.81.45.36 | 171.81.45.37 | 171.81.45.38 | 171.81.45.39 | 2 |
| 11 | 171.81.45.40/30 | 171.81.45.40 | 171.81.45.41 | 171.81.45.42 | 171.81.45.43 | 2 |
| 12 | 171.81.45.44/30 | 171.81.45.44 | 171.81.45.45 | 171.81.45.46 | 171.81.45.47 | 2 |
| 13 | 171.81.45.48/30 | 171.81.45.48 | 171.81.45.49 | 171.81.45.50 | 171.81.45.51 | 2 |
| 14 | 171.81.45.52/30 | 171.81.45.52 | 171.81.45.53 | 171.81.45.54 | 171.81.45.55 | 2 |
| 15 | 171.81.45.56/30 | 171.81.45.56 | 171.81.45.57 | 171.81.45.58 | 171.81.45.59 | 2 |
| 16 | 171.81.45.60/30 | 171.81.45.60 | 171.81.45.61 | 171.81.45.62 | 171.81.45.63 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.