178.123.156.0/26
PublicClass B — /26 prefix — 62 usable hosts
Network address — the base address of the block (178.123.156.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 178.123.156.63 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 | 178.123.156.0/26 |
| Network Address | 178.123.156.0 |
| Broadcast Address | 178.123.156.63 |
| 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 | 178.123.156.1 |
| Last Usable IP | 178.123.156.62 |
| Network (Hex) | 0xB27B9C00 |
| Broadcast (Hex) | 0xB27B9C3F |
| 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 178.123.156.0/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 178.123.156.0/27 | 178.123.156.0 | 178.123.156.1 | 178.123.156.30 | 178.123.156.31 | 30 |
| 2 | 178.123.156.32/27 | 178.123.156.32 | 178.123.156.33 | 178.123.156.62 | 178.123.156.63 | 30 |
Split 178.123.156.0/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 178.123.156.0/28 | 178.123.156.0 | 178.123.156.1 | 178.123.156.14 | 178.123.156.15 | 14 |
| 2 | 178.123.156.16/28 | 178.123.156.16 | 178.123.156.17 | 178.123.156.30 | 178.123.156.31 | 14 |
| 3 | 178.123.156.32/28 | 178.123.156.32 | 178.123.156.33 | 178.123.156.46 | 178.123.156.47 | 14 |
| 4 | 178.123.156.48/28 | 178.123.156.48 | 178.123.156.49 | 178.123.156.62 | 178.123.156.63 | 14 |
Split 178.123.156.0/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 178.123.156.0/29 | 178.123.156.0 | 178.123.156.1 | 178.123.156.6 | 178.123.156.7 | 6 |
| 2 | 178.123.156.8/29 | 178.123.156.8 | 178.123.156.9 | 178.123.156.14 | 178.123.156.15 | 6 |
| 3 | 178.123.156.16/29 | 178.123.156.16 | 178.123.156.17 | 178.123.156.22 | 178.123.156.23 | 6 |
| 4 | 178.123.156.24/29 | 178.123.156.24 | 178.123.156.25 | 178.123.156.30 | 178.123.156.31 | 6 |
| 5 | 178.123.156.32/29 | 178.123.156.32 | 178.123.156.33 | 178.123.156.38 | 178.123.156.39 | 6 |
| 6 | 178.123.156.40/29 | 178.123.156.40 | 178.123.156.41 | 178.123.156.46 | 178.123.156.47 | 6 |
| 7 | 178.123.156.48/29 | 178.123.156.48 | 178.123.156.49 | 178.123.156.54 | 178.123.156.55 | 6 |
| 8 | 178.123.156.56/29 | 178.123.156.56 | 178.123.156.57 | 178.123.156.62 | 178.123.156.63 | 6 |
Split 178.123.156.0/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 178.123.156.0/30 | 178.123.156.0 | 178.123.156.1 | 178.123.156.2 | 178.123.156.3 | 2 |
| 2 | 178.123.156.4/30 | 178.123.156.4 | 178.123.156.5 | 178.123.156.6 | 178.123.156.7 | 2 |
| 3 | 178.123.156.8/30 | 178.123.156.8 | 178.123.156.9 | 178.123.156.10 | 178.123.156.11 | 2 |
| 4 | 178.123.156.12/30 | 178.123.156.12 | 178.123.156.13 | 178.123.156.14 | 178.123.156.15 | 2 |
| 5 | 178.123.156.16/30 | 178.123.156.16 | 178.123.156.17 | 178.123.156.18 | 178.123.156.19 | 2 |
| 6 | 178.123.156.20/30 | 178.123.156.20 | 178.123.156.21 | 178.123.156.22 | 178.123.156.23 | 2 |
| 7 | 178.123.156.24/30 | 178.123.156.24 | 178.123.156.25 | 178.123.156.26 | 178.123.156.27 | 2 |
| 8 | 178.123.156.28/30 | 178.123.156.28 | 178.123.156.29 | 178.123.156.30 | 178.123.156.31 | 2 |
| 9 | 178.123.156.32/30 | 178.123.156.32 | 178.123.156.33 | 178.123.156.34 | 178.123.156.35 | 2 |
| 10 | 178.123.156.36/30 | 178.123.156.36 | 178.123.156.37 | 178.123.156.38 | 178.123.156.39 | 2 |
| 11 | 178.123.156.40/30 | 178.123.156.40 | 178.123.156.41 | 178.123.156.42 | 178.123.156.43 | 2 |
| 12 | 178.123.156.44/30 | 178.123.156.44 | 178.123.156.45 | 178.123.156.46 | 178.123.156.47 | 2 |
| 13 | 178.123.156.48/30 | 178.123.156.48 | 178.123.156.49 | 178.123.156.50 | 178.123.156.51 | 2 |
| 14 | 178.123.156.52/30 | 178.123.156.52 | 178.123.156.53 | 178.123.156.54 | 178.123.156.55 | 2 |
| 15 | 178.123.156.56/30 | 178.123.156.56 | 178.123.156.57 | 178.123.156.58 | 178.123.156.59 | 2 |
| 16 | 178.123.156.60/30 | 178.123.156.60 | 178.123.156.61 | 178.123.156.62 | 178.123.156.63 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.