28.4.61.192/27
PublicClass A — /27 prefix — 30 usable hosts
Network address — the base address of the block (28.4.61.192). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 28.4.61.223 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 | 28.4.61.192/27 |
| Network Address | 28.4.61.192 |
| Broadcast Address | 28.4.61.223 |
| Subnet Mask | 255.255.255.224 |
| Wildcard Mask | 0.0.0.31 |
| Prefix Length | /27 |
| IP Address Class | Class A |
| Total IP Addresses | 32 |
| Usable Host Addresses | 30 |
| First Usable IP | 28.4.61.193 |
| Last Usable IP | 28.4.61.222 |
| Network (Hex) | 0x1C043DC0 |
| Broadcast (Hex) | 0x1C043DDF |
| Address Type | Public / Globally Routable |
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 28.4.61.192/27 into 2 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.4.61.192/28 | 28.4.61.192 | 28.4.61.193 | 28.4.61.206 | 28.4.61.207 | 14 |
| 2 | 28.4.61.208/28 | 28.4.61.208 | 28.4.61.209 | 28.4.61.222 | 28.4.61.223 | 14 |
Split 28.4.61.192/27 into 4 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.4.61.192/29 | 28.4.61.192 | 28.4.61.193 | 28.4.61.198 | 28.4.61.199 | 6 |
| 2 | 28.4.61.200/29 | 28.4.61.200 | 28.4.61.201 | 28.4.61.206 | 28.4.61.207 | 6 |
| 3 | 28.4.61.208/29 | 28.4.61.208 | 28.4.61.209 | 28.4.61.214 | 28.4.61.215 | 6 |
| 4 | 28.4.61.216/29 | 28.4.61.216 | 28.4.61.217 | 28.4.61.222 | 28.4.61.223 | 6 |
Split 28.4.61.192/27 into 8 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.4.61.192/30 | 28.4.61.192 | 28.4.61.193 | 28.4.61.194 | 28.4.61.195 | 2 |
| 2 | 28.4.61.196/30 | 28.4.61.196 | 28.4.61.197 | 28.4.61.198 | 28.4.61.199 | 2 |
| 3 | 28.4.61.200/30 | 28.4.61.200 | 28.4.61.201 | 28.4.61.202 | 28.4.61.203 | 2 |
| 4 | 28.4.61.204/30 | 28.4.61.204 | 28.4.61.205 | 28.4.61.206 | 28.4.61.207 | 2 |
| 5 | 28.4.61.208/30 | 28.4.61.208 | 28.4.61.209 | 28.4.61.210 | 28.4.61.211 | 2 |
| 6 | 28.4.61.212/30 | 28.4.61.212 | 28.4.61.213 | 28.4.61.214 | 28.4.61.215 | 2 |
| 7 | 28.4.61.216/30 | 28.4.61.216 | 28.4.61.217 | 28.4.61.218 | 28.4.61.219 | 2 |
| 8 | 28.4.61.220/30 | 28.4.61.220 | 28.4.61.221 | 28.4.61.222 | 28.4.61.223 | 2 |
IP Address Sample
Showing first 16 of 32 total IPs.