39.151.212.0/23
PublicClass A — /23 prefix — 510 usable hosts
Network address — the base address of the block (39.151.212.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 39.151.213.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 510 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.254.0 is the dotted-decimal equivalent of /23. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 39.151.212.0/23 |
| Network Address | 39.151.212.0 |
| Broadcast Address | 39.151.213.255 |
| Subnet Mask | 255.255.254.0 |
| Wildcard Mask | 0.0.1.255 |
| Prefix Length | /23 |
| IP Address Class | Class A |
| Total IP Addresses | 512 |
| Usable Host Addresses | 510 |
| First Usable IP | 39.151.212.1 |
| Last Usable IP | 39.151.213.254 |
| Network (Hex) | 0x2797D400 |
| Broadcast (Hex) | 0x2797D5FF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 23 bits (1s in the mask) identify the network. The remaining 9 bits identify hosts within the network.
Split into Equal Subnets
Split 39.151.212.0/23 into 2 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 39.151.212.0/24 | 39.151.212.0 | 39.151.212.1 | 39.151.212.254 | 39.151.212.255 | 254 |
| 2 | 39.151.213.0/24 | 39.151.213.0 | 39.151.213.1 | 39.151.213.254 | 39.151.213.255 | 254 |
Split 39.151.212.0/23 into 4 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 39.151.212.0/25 | 39.151.212.0 | 39.151.212.1 | 39.151.212.126 | 39.151.212.127 | 126 |
| 2 | 39.151.212.128/25 | 39.151.212.128 | 39.151.212.129 | 39.151.212.254 | 39.151.212.255 | 126 |
| 3 | 39.151.213.0/25 | 39.151.213.0 | 39.151.213.1 | 39.151.213.126 | 39.151.213.127 | 126 |
| 4 | 39.151.213.128/25 | 39.151.213.128 | 39.151.213.129 | 39.151.213.254 | 39.151.213.255 | 126 |
Split 39.151.212.0/23 into 8 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 39.151.212.0/26 | 39.151.212.0 | 39.151.212.1 | 39.151.212.62 | 39.151.212.63 | 62 |
| 2 | 39.151.212.64/26 | 39.151.212.64 | 39.151.212.65 | 39.151.212.126 | 39.151.212.127 | 62 |
| 3 | 39.151.212.128/26 | 39.151.212.128 | 39.151.212.129 | 39.151.212.190 | 39.151.212.191 | 62 |
| 4 | 39.151.212.192/26 | 39.151.212.192 | 39.151.212.193 | 39.151.212.254 | 39.151.212.255 | 62 |
| 5 | 39.151.213.0/26 | 39.151.213.0 | 39.151.213.1 | 39.151.213.62 | 39.151.213.63 | 62 |
| 6 | 39.151.213.64/26 | 39.151.213.64 | 39.151.213.65 | 39.151.213.126 | 39.151.213.127 | 62 |
| 7 | 39.151.213.128/26 | 39.151.213.128 | 39.151.213.129 | 39.151.213.190 | 39.151.213.191 | 62 |
| 8 | 39.151.213.192/26 | 39.151.213.192 | 39.151.213.193 | 39.151.213.254 | 39.151.213.255 | 62 |
Split 39.151.212.0/23 into 16 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 39.151.212.0/27 | 39.151.212.0 | 39.151.212.1 | 39.151.212.30 | 39.151.212.31 | 30 |
| 2 | 39.151.212.32/27 | 39.151.212.32 | 39.151.212.33 | 39.151.212.62 | 39.151.212.63 | 30 |
| 3 | 39.151.212.64/27 | 39.151.212.64 | 39.151.212.65 | 39.151.212.94 | 39.151.212.95 | 30 |
| 4 | 39.151.212.96/27 | 39.151.212.96 | 39.151.212.97 | 39.151.212.126 | 39.151.212.127 | 30 |
| 5 | 39.151.212.128/27 | 39.151.212.128 | 39.151.212.129 | 39.151.212.158 | 39.151.212.159 | 30 |
| 6 | 39.151.212.160/27 | 39.151.212.160 | 39.151.212.161 | 39.151.212.190 | 39.151.212.191 | 30 |
| 7 | 39.151.212.192/27 | 39.151.212.192 | 39.151.212.193 | 39.151.212.222 | 39.151.212.223 | 30 |
| 8 | 39.151.212.224/27 | 39.151.212.224 | 39.151.212.225 | 39.151.212.254 | 39.151.212.255 | 30 |
| 9 | 39.151.213.0/27 | 39.151.213.0 | 39.151.213.1 | 39.151.213.30 | 39.151.213.31 | 30 |
| 10 | 39.151.213.32/27 | 39.151.213.32 | 39.151.213.33 | 39.151.213.62 | 39.151.213.63 | 30 |
| 11 | 39.151.213.64/27 | 39.151.213.64 | 39.151.213.65 | 39.151.213.94 | 39.151.213.95 | 30 |
| 12 | 39.151.213.96/27 | 39.151.213.96 | 39.151.213.97 | 39.151.213.126 | 39.151.213.127 | 30 |
| 13 | 39.151.213.128/27 | 39.151.213.128 | 39.151.213.129 | 39.151.213.158 | 39.151.213.159 | 30 |
| 14 | 39.151.213.160/27 | 39.151.213.160 | 39.151.213.161 | 39.151.213.190 | 39.151.213.191 | 30 |
| 15 | 39.151.213.192/27 | 39.151.213.192 | 39.151.213.193 | 39.151.213.222 | 39.151.213.223 | 30 |
| 16 | 39.151.213.224/27 | 39.151.213.224 | 39.151.213.225 | 39.151.213.254 | 39.151.213.255 | 30 |