10.18.27.192/26
Private (RFC 1918) RFC 1918Class A — /26 prefix — 62 usable hosts
Network address — the base address of the block (10.18.27.192). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 10.18.27.255 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 | 10.18.27.192/26 |
| Network Address | 10.18.27.192 |
| Broadcast Address | 10.18.27.255 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class A |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 10.18.27.193 |
| Last Usable IP | 10.18.27.254 |
| Network (Hex) | 0x0A121BC0 |
| Broadcast (Hex) | 0x0A121BFF |
| Governing RFC | RFC 1918 |
| Address Type | Private (RFC 1918) |
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 10.18.27.192/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.18.27.192/27 | 10.18.27.192 | 10.18.27.193 | 10.18.27.222 | 10.18.27.223 | 30 |
| 2 | 10.18.27.224/27 | 10.18.27.224 | 10.18.27.225 | 10.18.27.254 | 10.18.27.255 | 30 |
Split 10.18.27.192/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.18.27.192/28 | 10.18.27.192 | 10.18.27.193 | 10.18.27.206 | 10.18.27.207 | 14 |
| 2 | 10.18.27.208/28 | 10.18.27.208 | 10.18.27.209 | 10.18.27.222 | 10.18.27.223 | 14 |
| 3 | 10.18.27.224/28 | 10.18.27.224 | 10.18.27.225 | 10.18.27.238 | 10.18.27.239 | 14 |
| 4 | 10.18.27.240/28 | 10.18.27.240 | 10.18.27.241 | 10.18.27.254 | 10.18.27.255 | 14 |
Split 10.18.27.192/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.18.27.192/29 | 10.18.27.192 | 10.18.27.193 | 10.18.27.198 | 10.18.27.199 | 6 |
| 2 | 10.18.27.200/29 | 10.18.27.200 | 10.18.27.201 | 10.18.27.206 | 10.18.27.207 | 6 |
| 3 | 10.18.27.208/29 | 10.18.27.208 | 10.18.27.209 | 10.18.27.214 | 10.18.27.215 | 6 |
| 4 | 10.18.27.216/29 | 10.18.27.216 | 10.18.27.217 | 10.18.27.222 | 10.18.27.223 | 6 |
| 5 | 10.18.27.224/29 | 10.18.27.224 | 10.18.27.225 | 10.18.27.230 | 10.18.27.231 | 6 |
| 6 | 10.18.27.232/29 | 10.18.27.232 | 10.18.27.233 | 10.18.27.238 | 10.18.27.239 | 6 |
| 7 | 10.18.27.240/29 | 10.18.27.240 | 10.18.27.241 | 10.18.27.246 | 10.18.27.247 | 6 |
| 8 | 10.18.27.248/29 | 10.18.27.248 | 10.18.27.249 | 10.18.27.254 | 10.18.27.255 | 6 |
Split 10.18.27.192/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.18.27.192/30 | 10.18.27.192 | 10.18.27.193 | 10.18.27.194 | 10.18.27.195 | 2 |
| 2 | 10.18.27.196/30 | 10.18.27.196 | 10.18.27.197 | 10.18.27.198 | 10.18.27.199 | 2 |
| 3 | 10.18.27.200/30 | 10.18.27.200 | 10.18.27.201 | 10.18.27.202 | 10.18.27.203 | 2 |
| 4 | 10.18.27.204/30 | 10.18.27.204 | 10.18.27.205 | 10.18.27.206 | 10.18.27.207 | 2 |
| 5 | 10.18.27.208/30 | 10.18.27.208 | 10.18.27.209 | 10.18.27.210 | 10.18.27.211 | 2 |
| 6 | 10.18.27.212/30 | 10.18.27.212 | 10.18.27.213 | 10.18.27.214 | 10.18.27.215 | 2 |
| 7 | 10.18.27.216/30 | 10.18.27.216 | 10.18.27.217 | 10.18.27.218 | 10.18.27.219 | 2 |
| 8 | 10.18.27.220/30 | 10.18.27.220 | 10.18.27.221 | 10.18.27.222 | 10.18.27.223 | 2 |
| 9 | 10.18.27.224/30 | 10.18.27.224 | 10.18.27.225 | 10.18.27.226 | 10.18.27.227 | 2 |
| 10 | 10.18.27.228/30 | 10.18.27.228 | 10.18.27.229 | 10.18.27.230 | 10.18.27.231 | 2 |
| 11 | 10.18.27.232/30 | 10.18.27.232 | 10.18.27.233 | 10.18.27.234 | 10.18.27.235 | 2 |
| 12 | 10.18.27.236/30 | 10.18.27.236 | 10.18.27.237 | 10.18.27.238 | 10.18.27.239 | 2 |
| 13 | 10.18.27.240/30 | 10.18.27.240 | 10.18.27.241 | 10.18.27.242 | 10.18.27.243 | 2 |
| 14 | 10.18.27.244/30 | 10.18.27.244 | 10.18.27.245 | 10.18.27.246 | 10.18.27.247 | 2 |
| 15 | 10.18.27.248/30 | 10.18.27.248 | 10.18.27.249 | 10.18.27.250 | 10.18.27.251 | 2 |
| 16 | 10.18.27.252/30 | 10.18.27.252 | 10.18.27.253 | 10.18.27.254 | 10.18.27.255 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.