128.188.13.0/26
PublicClass B — /26 prefix — 62 usable hosts
Network address — the base address of the block (128.188.13.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 128.188.13.63 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 | 128.188.13.0/26 |
| Network Address | 128.188.13.0 |
| Broadcast Address | 128.188.13.63 |
| 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 | 128.188.13.1 |
| Last Usable IP | 128.188.13.62 |
| Network (Hex) | 0x80BC0D00 |
| Broadcast (Hex) | 0x80BC0D3F |
| 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 128.188.13.0/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 128.188.13.0/27 | 128.188.13.0 | 128.188.13.1 | 128.188.13.30 | 128.188.13.31 | 30 |
| 2 | 128.188.13.32/27 | 128.188.13.32 | 128.188.13.33 | 128.188.13.62 | 128.188.13.63 | 30 |
Split 128.188.13.0/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 128.188.13.0/28 | 128.188.13.0 | 128.188.13.1 | 128.188.13.14 | 128.188.13.15 | 14 |
| 2 | 128.188.13.16/28 | 128.188.13.16 | 128.188.13.17 | 128.188.13.30 | 128.188.13.31 | 14 |
| 3 | 128.188.13.32/28 | 128.188.13.32 | 128.188.13.33 | 128.188.13.46 | 128.188.13.47 | 14 |
| 4 | 128.188.13.48/28 | 128.188.13.48 | 128.188.13.49 | 128.188.13.62 | 128.188.13.63 | 14 |
Split 128.188.13.0/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 128.188.13.0/29 | 128.188.13.0 | 128.188.13.1 | 128.188.13.6 | 128.188.13.7 | 6 |
| 2 | 128.188.13.8/29 | 128.188.13.8 | 128.188.13.9 | 128.188.13.14 | 128.188.13.15 | 6 |
| 3 | 128.188.13.16/29 | 128.188.13.16 | 128.188.13.17 | 128.188.13.22 | 128.188.13.23 | 6 |
| 4 | 128.188.13.24/29 | 128.188.13.24 | 128.188.13.25 | 128.188.13.30 | 128.188.13.31 | 6 |
| 5 | 128.188.13.32/29 | 128.188.13.32 | 128.188.13.33 | 128.188.13.38 | 128.188.13.39 | 6 |
| 6 | 128.188.13.40/29 | 128.188.13.40 | 128.188.13.41 | 128.188.13.46 | 128.188.13.47 | 6 |
| 7 | 128.188.13.48/29 | 128.188.13.48 | 128.188.13.49 | 128.188.13.54 | 128.188.13.55 | 6 |
| 8 | 128.188.13.56/29 | 128.188.13.56 | 128.188.13.57 | 128.188.13.62 | 128.188.13.63 | 6 |
Split 128.188.13.0/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 128.188.13.0/30 | 128.188.13.0 | 128.188.13.1 | 128.188.13.2 | 128.188.13.3 | 2 |
| 2 | 128.188.13.4/30 | 128.188.13.4 | 128.188.13.5 | 128.188.13.6 | 128.188.13.7 | 2 |
| 3 | 128.188.13.8/30 | 128.188.13.8 | 128.188.13.9 | 128.188.13.10 | 128.188.13.11 | 2 |
| 4 | 128.188.13.12/30 | 128.188.13.12 | 128.188.13.13 | 128.188.13.14 | 128.188.13.15 | 2 |
| 5 | 128.188.13.16/30 | 128.188.13.16 | 128.188.13.17 | 128.188.13.18 | 128.188.13.19 | 2 |
| 6 | 128.188.13.20/30 | 128.188.13.20 | 128.188.13.21 | 128.188.13.22 | 128.188.13.23 | 2 |
| 7 | 128.188.13.24/30 | 128.188.13.24 | 128.188.13.25 | 128.188.13.26 | 128.188.13.27 | 2 |
| 8 | 128.188.13.28/30 | 128.188.13.28 | 128.188.13.29 | 128.188.13.30 | 128.188.13.31 | 2 |
| 9 | 128.188.13.32/30 | 128.188.13.32 | 128.188.13.33 | 128.188.13.34 | 128.188.13.35 | 2 |
| 10 | 128.188.13.36/30 | 128.188.13.36 | 128.188.13.37 | 128.188.13.38 | 128.188.13.39 | 2 |
| 11 | 128.188.13.40/30 | 128.188.13.40 | 128.188.13.41 | 128.188.13.42 | 128.188.13.43 | 2 |
| 12 | 128.188.13.44/30 | 128.188.13.44 | 128.188.13.45 | 128.188.13.46 | 128.188.13.47 | 2 |
| 13 | 128.188.13.48/30 | 128.188.13.48 | 128.188.13.49 | 128.188.13.50 | 128.188.13.51 | 2 |
| 14 | 128.188.13.52/30 | 128.188.13.52 | 128.188.13.53 | 128.188.13.54 | 128.188.13.55 | 2 |
| 15 | 128.188.13.56/30 | 128.188.13.56 | 128.188.13.57 | 128.188.13.58 | 128.188.13.59 | 2 |
| 16 | 128.188.13.60/30 | 128.188.13.60 | 128.188.13.61 | 128.188.13.62 | 128.188.13.63 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.