175.57.101.192/28
PublicClass B — /28 prefix — 14 usable hosts
Network address — the base address of the block (175.57.101.192). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 175.57.101.207 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 14 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.240 is the dotted-decimal equivalent of /28. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 175.57.101.192/28 |
| Network Address | 175.57.101.192 |
| Broadcast Address | 175.57.101.207 |
| Subnet Mask | 255.255.255.240 |
| Wildcard Mask | 0.0.0.15 |
| Prefix Length | /28 |
| IP Address Class | Class B |
| Total IP Addresses | 16 |
| Usable Host Addresses | 14 |
| First Usable IP | 175.57.101.193 |
| Last Usable IP | 175.57.101.206 |
| Network (Hex) | 0xAF3965C0 |
| Broadcast (Hex) | 0xAF3965CF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 28 bits (1s in the mask) identify the network. The remaining 4 bits identify hosts within the network.
Split into Equal Subnets
Split 175.57.101.192/28 into 2 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 175.57.101.192/29 | 175.57.101.192 | 175.57.101.193 | 175.57.101.198 | 175.57.101.199 | 6 |
| 2 | 175.57.101.200/29 | 175.57.101.200 | 175.57.101.201 | 175.57.101.206 | 175.57.101.207 | 6 |
Split 175.57.101.192/28 into 4 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 175.57.101.192/30 | 175.57.101.192 | 175.57.101.193 | 175.57.101.194 | 175.57.101.195 | 2 |
| 2 | 175.57.101.196/30 | 175.57.101.196 | 175.57.101.197 | 175.57.101.198 | 175.57.101.199 | 2 |
| 3 | 175.57.101.200/30 | 175.57.101.200 | 175.57.101.201 | 175.57.101.202 | 175.57.101.203 | 2 |
| 4 | 175.57.101.204/30 | 175.57.101.204 | 175.57.101.205 | 175.57.101.206 | 175.57.101.207 | 2 |