230.128.166.192/27
Multicast RFC 5771Class D (Multicast) — /27 prefix — 30 usable hosts
Network address — the base address of the block (230.128.166.192). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 230.128.166.223 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 30 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 230.128.166.192/27 |
| Network Address | 230.128.166.192 |
| Broadcast Address | 230.128.166.223 |
| Subnet Mask | 255.255.255.224 |
| Wildcard Mask | 0.0.0.31 |
| Prefix Length | /27 |
| IP Address Class | Class D (Multicast) |
| Total IP Addresses | 32 |
| Usable Host Addresses | 30 |
| First Usable IP | 230.128.166.193 |
| Last Usable IP | 230.128.166.222 |
| Network (Hex) | 0xE680A6C0 |
| Broadcast (Hex) | 0xE680A6DF |
| Governing RFC | RFC 5771 |
| Address Type | Multicast |
Binary Representation
The first 27 bits (1s in the mask) identify the network. The remaining 5 bits identify hosts within the network.
Split into Equal Subnets
Split 230.128.166.192/27 into 2 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 230.128.166.192/28 | 230.128.166.192 | 230.128.166.193 | 230.128.166.206 | 230.128.166.207 | 14 |
| 2 | 230.128.166.208/28 | 230.128.166.208 | 230.128.166.209 | 230.128.166.222 | 230.128.166.223 | 14 |
Split 230.128.166.192/27 into 4 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 230.128.166.192/29 | 230.128.166.192 | 230.128.166.193 | 230.128.166.198 | 230.128.166.199 | 6 |
| 2 | 230.128.166.200/29 | 230.128.166.200 | 230.128.166.201 | 230.128.166.206 | 230.128.166.207 | 6 |
| 3 | 230.128.166.208/29 | 230.128.166.208 | 230.128.166.209 | 230.128.166.214 | 230.128.166.215 | 6 |
| 4 | 230.128.166.216/29 | 230.128.166.216 | 230.128.166.217 | 230.128.166.222 | 230.128.166.223 | 6 |
Split 230.128.166.192/27 into 8 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 230.128.166.192/30 | 230.128.166.192 | 230.128.166.193 | 230.128.166.194 | 230.128.166.195 | 2 |
| 2 | 230.128.166.196/30 | 230.128.166.196 | 230.128.166.197 | 230.128.166.198 | 230.128.166.199 | 2 |
| 3 | 230.128.166.200/30 | 230.128.166.200 | 230.128.166.201 | 230.128.166.202 | 230.128.166.203 | 2 |
| 4 | 230.128.166.204/30 | 230.128.166.204 | 230.128.166.205 | 230.128.166.206 | 230.128.166.207 | 2 |
| 5 | 230.128.166.208/30 | 230.128.166.208 | 230.128.166.209 | 230.128.166.210 | 230.128.166.211 | 2 |
| 6 | 230.128.166.212/30 | 230.128.166.212 | 230.128.166.213 | 230.128.166.214 | 230.128.166.215 | 2 |
| 7 | 230.128.166.216/30 | 230.128.166.216 | 230.128.166.217 | 230.128.166.218 | 230.128.166.219 | 2 |
| 8 | 230.128.166.220/30 | 230.128.166.220 | 230.128.166.221 | 230.128.166.222 | 230.128.166.223 | 2 |
IP Address Sample
Showing first 16 of 32 total IPs.