81.252.72.192/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (81.252.72.192). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 81.252.72.255 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 | 81.252.72.192/26 |
| Network Address | 81.252.72.192 |
| Broadcast Address | 81.252.72.255 |
| 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 | 81.252.72.193 |
| Last Usable IP | 81.252.72.254 |
| Network (Hex) | 0x51FC48C0 |
| Broadcast (Hex) | 0x51FC48FF |
| Address Type | Public / Globally Routable |
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 81.252.72.192/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 81.252.72.192/27 | 81.252.72.192 | 81.252.72.193 | 81.252.72.222 | 81.252.72.223 | 30 |
| 2 | 81.252.72.224/27 | 81.252.72.224 | 81.252.72.225 | 81.252.72.254 | 81.252.72.255 | 30 |
Split 81.252.72.192/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 81.252.72.192/28 | 81.252.72.192 | 81.252.72.193 | 81.252.72.206 | 81.252.72.207 | 14 |
| 2 | 81.252.72.208/28 | 81.252.72.208 | 81.252.72.209 | 81.252.72.222 | 81.252.72.223 | 14 |
| 3 | 81.252.72.224/28 | 81.252.72.224 | 81.252.72.225 | 81.252.72.238 | 81.252.72.239 | 14 |
| 4 | 81.252.72.240/28 | 81.252.72.240 | 81.252.72.241 | 81.252.72.254 | 81.252.72.255 | 14 |
Split 81.252.72.192/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 81.252.72.192/29 | 81.252.72.192 | 81.252.72.193 | 81.252.72.198 | 81.252.72.199 | 6 |
| 2 | 81.252.72.200/29 | 81.252.72.200 | 81.252.72.201 | 81.252.72.206 | 81.252.72.207 | 6 |
| 3 | 81.252.72.208/29 | 81.252.72.208 | 81.252.72.209 | 81.252.72.214 | 81.252.72.215 | 6 |
| 4 | 81.252.72.216/29 | 81.252.72.216 | 81.252.72.217 | 81.252.72.222 | 81.252.72.223 | 6 |
| 5 | 81.252.72.224/29 | 81.252.72.224 | 81.252.72.225 | 81.252.72.230 | 81.252.72.231 | 6 |
| 6 | 81.252.72.232/29 | 81.252.72.232 | 81.252.72.233 | 81.252.72.238 | 81.252.72.239 | 6 |
| 7 | 81.252.72.240/29 | 81.252.72.240 | 81.252.72.241 | 81.252.72.246 | 81.252.72.247 | 6 |
| 8 | 81.252.72.248/29 | 81.252.72.248 | 81.252.72.249 | 81.252.72.254 | 81.252.72.255 | 6 |
Split 81.252.72.192/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 81.252.72.192/30 | 81.252.72.192 | 81.252.72.193 | 81.252.72.194 | 81.252.72.195 | 2 |
| 2 | 81.252.72.196/30 | 81.252.72.196 | 81.252.72.197 | 81.252.72.198 | 81.252.72.199 | 2 |
| 3 | 81.252.72.200/30 | 81.252.72.200 | 81.252.72.201 | 81.252.72.202 | 81.252.72.203 | 2 |
| 4 | 81.252.72.204/30 | 81.252.72.204 | 81.252.72.205 | 81.252.72.206 | 81.252.72.207 | 2 |
| 5 | 81.252.72.208/30 | 81.252.72.208 | 81.252.72.209 | 81.252.72.210 | 81.252.72.211 | 2 |
| 6 | 81.252.72.212/30 | 81.252.72.212 | 81.252.72.213 | 81.252.72.214 | 81.252.72.215 | 2 |
| 7 | 81.252.72.216/30 | 81.252.72.216 | 81.252.72.217 | 81.252.72.218 | 81.252.72.219 | 2 |
| 8 | 81.252.72.220/30 | 81.252.72.220 | 81.252.72.221 | 81.252.72.222 | 81.252.72.223 | 2 |
| 9 | 81.252.72.224/30 | 81.252.72.224 | 81.252.72.225 | 81.252.72.226 | 81.252.72.227 | 2 |
| 10 | 81.252.72.228/30 | 81.252.72.228 | 81.252.72.229 | 81.252.72.230 | 81.252.72.231 | 2 |
| 11 | 81.252.72.232/30 | 81.252.72.232 | 81.252.72.233 | 81.252.72.234 | 81.252.72.235 | 2 |
| 12 | 81.252.72.236/30 | 81.252.72.236 | 81.252.72.237 | 81.252.72.238 | 81.252.72.239 | 2 |
| 13 | 81.252.72.240/30 | 81.252.72.240 | 81.252.72.241 | 81.252.72.242 | 81.252.72.243 | 2 |
| 14 | 81.252.72.244/30 | 81.252.72.244 | 81.252.72.245 | 81.252.72.246 | 81.252.72.247 | 2 |
| 15 | 81.252.72.248/30 | 81.252.72.248 | 81.252.72.249 | 81.252.72.250 | 81.252.72.251 | 2 |
| 16 | 81.252.72.252/30 | 81.252.72.252 | 81.252.72.253 | 81.252.72.254 | 81.252.72.255 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.