172.31.130.224/27
Private (RFC 1918) RFC 1918Class B — /27 prefix — 30 usable hosts
Network address — the base address of the block (172.31.130.224). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 172.31.130.255 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 | 172.31.130.224/27 |
| Network Address | 172.31.130.224 |
| Broadcast Address | 172.31.130.255 |
| Subnet Mask | 255.255.255.224 |
| Wildcard Mask | 0.0.0.31 |
| Prefix Length | /27 |
| IP Address Class | Class B |
| Total IP Addresses | 32 |
| Usable Host Addresses | 30 |
| First Usable IP | 172.31.130.225 |
| Last Usable IP | 172.31.130.254 |
| Network (Hex) | 0xAC1F82E0 |
| Broadcast (Hex) | 0xAC1F82FF |
| Governing RFC | RFC 1918 |
| Address Type | Private (RFC 1918) |
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 172.31.130.224/27 into 2 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.31.130.224/28 | 172.31.130.224 | 172.31.130.225 | 172.31.130.238 | 172.31.130.239 | 14 |
| 2 | 172.31.130.240/28 | 172.31.130.240 | 172.31.130.241 | 172.31.130.254 | 172.31.130.255 | 14 |
Split 172.31.130.224/27 into 4 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.31.130.224/29 | 172.31.130.224 | 172.31.130.225 | 172.31.130.230 | 172.31.130.231 | 6 |
| 2 | 172.31.130.232/29 | 172.31.130.232 | 172.31.130.233 | 172.31.130.238 | 172.31.130.239 | 6 |
| 3 | 172.31.130.240/29 | 172.31.130.240 | 172.31.130.241 | 172.31.130.246 | 172.31.130.247 | 6 |
| 4 | 172.31.130.248/29 | 172.31.130.248 | 172.31.130.249 | 172.31.130.254 | 172.31.130.255 | 6 |
Split 172.31.130.224/27 into 8 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.31.130.224/30 | 172.31.130.224 | 172.31.130.225 | 172.31.130.226 | 172.31.130.227 | 2 |
| 2 | 172.31.130.228/30 | 172.31.130.228 | 172.31.130.229 | 172.31.130.230 | 172.31.130.231 | 2 |
| 3 | 172.31.130.232/30 | 172.31.130.232 | 172.31.130.233 | 172.31.130.234 | 172.31.130.235 | 2 |
| 4 | 172.31.130.236/30 | 172.31.130.236 | 172.31.130.237 | 172.31.130.238 | 172.31.130.239 | 2 |
| 5 | 172.31.130.240/30 | 172.31.130.240 | 172.31.130.241 | 172.31.130.242 | 172.31.130.243 | 2 |
| 6 | 172.31.130.244/30 | 172.31.130.244 | 172.31.130.245 | 172.31.130.246 | 172.31.130.247 | 2 |
| 7 | 172.31.130.248/30 | 172.31.130.248 | 172.31.130.249 | 172.31.130.250 | 172.31.130.251 | 2 |
| 8 | 172.31.130.252/30 | 172.31.130.252 | 172.31.130.253 | 172.31.130.254 | 172.31.130.255 | 2 |
IP Address Sample
Showing first 16 of 32 total IPs.