159.231.21.0/26
PublicClass B — /26 prefix — 62 usable hosts
Network address — the base address of the block (159.231.21.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 159.231.21.63 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 | 159.231.21.0/26 |
| Network Address | 159.231.21.0 |
| Broadcast Address | 159.231.21.63 |
| 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 | 159.231.21.1 |
| Last Usable IP | 159.231.21.62 |
| Network (Hex) | 0x9FE71500 |
| Broadcast (Hex) | 0x9FE7153F |
| 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 159.231.21.0/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 159.231.21.0/27 | 159.231.21.0 | 159.231.21.1 | 159.231.21.30 | 159.231.21.31 | 30 |
| 2 | 159.231.21.32/27 | 159.231.21.32 | 159.231.21.33 | 159.231.21.62 | 159.231.21.63 | 30 |
Split 159.231.21.0/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 159.231.21.0/28 | 159.231.21.0 | 159.231.21.1 | 159.231.21.14 | 159.231.21.15 | 14 |
| 2 | 159.231.21.16/28 | 159.231.21.16 | 159.231.21.17 | 159.231.21.30 | 159.231.21.31 | 14 |
| 3 | 159.231.21.32/28 | 159.231.21.32 | 159.231.21.33 | 159.231.21.46 | 159.231.21.47 | 14 |
| 4 | 159.231.21.48/28 | 159.231.21.48 | 159.231.21.49 | 159.231.21.62 | 159.231.21.63 | 14 |
Split 159.231.21.0/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 159.231.21.0/29 | 159.231.21.0 | 159.231.21.1 | 159.231.21.6 | 159.231.21.7 | 6 |
| 2 | 159.231.21.8/29 | 159.231.21.8 | 159.231.21.9 | 159.231.21.14 | 159.231.21.15 | 6 |
| 3 | 159.231.21.16/29 | 159.231.21.16 | 159.231.21.17 | 159.231.21.22 | 159.231.21.23 | 6 |
| 4 | 159.231.21.24/29 | 159.231.21.24 | 159.231.21.25 | 159.231.21.30 | 159.231.21.31 | 6 |
| 5 | 159.231.21.32/29 | 159.231.21.32 | 159.231.21.33 | 159.231.21.38 | 159.231.21.39 | 6 |
| 6 | 159.231.21.40/29 | 159.231.21.40 | 159.231.21.41 | 159.231.21.46 | 159.231.21.47 | 6 |
| 7 | 159.231.21.48/29 | 159.231.21.48 | 159.231.21.49 | 159.231.21.54 | 159.231.21.55 | 6 |
| 8 | 159.231.21.56/29 | 159.231.21.56 | 159.231.21.57 | 159.231.21.62 | 159.231.21.63 | 6 |
Split 159.231.21.0/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 159.231.21.0/30 | 159.231.21.0 | 159.231.21.1 | 159.231.21.2 | 159.231.21.3 | 2 |
| 2 | 159.231.21.4/30 | 159.231.21.4 | 159.231.21.5 | 159.231.21.6 | 159.231.21.7 | 2 |
| 3 | 159.231.21.8/30 | 159.231.21.8 | 159.231.21.9 | 159.231.21.10 | 159.231.21.11 | 2 |
| 4 | 159.231.21.12/30 | 159.231.21.12 | 159.231.21.13 | 159.231.21.14 | 159.231.21.15 | 2 |
| 5 | 159.231.21.16/30 | 159.231.21.16 | 159.231.21.17 | 159.231.21.18 | 159.231.21.19 | 2 |
| 6 | 159.231.21.20/30 | 159.231.21.20 | 159.231.21.21 | 159.231.21.22 | 159.231.21.23 | 2 |
| 7 | 159.231.21.24/30 | 159.231.21.24 | 159.231.21.25 | 159.231.21.26 | 159.231.21.27 | 2 |
| 8 | 159.231.21.28/30 | 159.231.21.28 | 159.231.21.29 | 159.231.21.30 | 159.231.21.31 | 2 |
| 9 | 159.231.21.32/30 | 159.231.21.32 | 159.231.21.33 | 159.231.21.34 | 159.231.21.35 | 2 |
| 10 | 159.231.21.36/30 | 159.231.21.36 | 159.231.21.37 | 159.231.21.38 | 159.231.21.39 | 2 |
| 11 | 159.231.21.40/30 | 159.231.21.40 | 159.231.21.41 | 159.231.21.42 | 159.231.21.43 | 2 |
| 12 | 159.231.21.44/30 | 159.231.21.44 | 159.231.21.45 | 159.231.21.46 | 159.231.21.47 | 2 |
| 13 | 159.231.21.48/30 | 159.231.21.48 | 159.231.21.49 | 159.231.21.50 | 159.231.21.51 | 2 |
| 14 | 159.231.21.52/30 | 159.231.21.52 | 159.231.21.53 | 159.231.21.54 | 159.231.21.55 | 2 |
| 15 | 159.231.21.56/30 | 159.231.21.56 | 159.231.21.57 | 159.231.21.58 | 159.231.21.59 | 2 |
| 16 | 159.231.21.60/30 | 159.231.21.60 | 159.231.21.61 | 159.231.21.62 | 159.231.21.63 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.