78.13.188.0/23
PublicClass A — /23 prefix — 510 usable hosts
Network address — the base address of the block (78.13.188.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 78.13.189.255 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 | 78.13.188.0/23 |
| Network Address | 78.13.188.0 |
| Broadcast Address | 78.13.189.255 |
| 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 | 78.13.188.1 |
| Last Usable IP | 78.13.189.254 |
| Network (Hex) | 0x4E0DBC00 |
| Broadcast (Hex) | 0x4E0DBDFF |
| 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 78.13.188.0/23 into 2 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 78.13.188.0/24 | 78.13.188.0 | 78.13.188.1 | 78.13.188.254 | 78.13.188.255 | 254 |
| 2 | 78.13.189.0/24 | 78.13.189.0 | 78.13.189.1 | 78.13.189.254 | 78.13.189.255 | 254 |
Split 78.13.188.0/23 into 4 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 78.13.188.0/25 | 78.13.188.0 | 78.13.188.1 | 78.13.188.126 | 78.13.188.127 | 126 |
| 2 | 78.13.188.128/25 | 78.13.188.128 | 78.13.188.129 | 78.13.188.254 | 78.13.188.255 | 126 |
| 3 | 78.13.189.0/25 | 78.13.189.0 | 78.13.189.1 | 78.13.189.126 | 78.13.189.127 | 126 |
| 4 | 78.13.189.128/25 | 78.13.189.128 | 78.13.189.129 | 78.13.189.254 | 78.13.189.255 | 126 |
Split 78.13.188.0/23 into 8 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 78.13.188.0/26 | 78.13.188.0 | 78.13.188.1 | 78.13.188.62 | 78.13.188.63 | 62 |
| 2 | 78.13.188.64/26 | 78.13.188.64 | 78.13.188.65 | 78.13.188.126 | 78.13.188.127 | 62 |
| 3 | 78.13.188.128/26 | 78.13.188.128 | 78.13.188.129 | 78.13.188.190 | 78.13.188.191 | 62 |
| 4 | 78.13.188.192/26 | 78.13.188.192 | 78.13.188.193 | 78.13.188.254 | 78.13.188.255 | 62 |
| 5 | 78.13.189.0/26 | 78.13.189.0 | 78.13.189.1 | 78.13.189.62 | 78.13.189.63 | 62 |
| 6 | 78.13.189.64/26 | 78.13.189.64 | 78.13.189.65 | 78.13.189.126 | 78.13.189.127 | 62 |
| 7 | 78.13.189.128/26 | 78.13.189.128 | 78.13.189.129 | 78.13.189.190 | 78.13.189.191 | 62 |
| 8 | 78.13.189.192/26 | 78.13.189.192 | 78.13.189.193 | 78.13.189.254 | 78.13.189.255 | 62 |
Split 78.13.188.0/23 into 16 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 78.13.188.0/27 | 78.13.188.0 | 78.13.188.1 | 78.13.188.30 | 78.13.188.31 | 30 |
| 2 | 78.13.188.32/27 | 78.13.188.32 | 78.13.188.33 | 78.13.188.62 | 78.13.188.63 | 30 |
| 3 | 78.13.188.64/27 | 78.13.188.64 | 78.13.188.65 | 78.13.188.94 | 78.13.188.95 | 30 |
| 4 | 78.13.188.96/27 | 78.13.188.96 | 78.13.188.97 | 78.13.188.126 | 78.13.188.127 | 30 |
| 5 | 78.13.188.128/27 | 78.13.188.128 | 78.13.188.129 | 78.13.188.158 | 78.13.188.159 | 30 |
| 6 | 78.13.188.160/27 | 78.13.188.160 | 78.13.188.161 | 78.13.188.190 | 78.13.188.191 | 30 |
| 7 | 78.13.188.192/27 | 78.13.188.192 | 78.13.188.193 | 78.13.188.222 | 78.13.188.223 | 30 |
| 8 | 78.13.188.224/27 | 78.13.188.224 | 78.13.188.225 | 78.13.188.254 | 78.13.188.255 | 30 |
| 9 | 78.13.189.0/27 | 78.13.189.0 | 78.13.189.1 | 78.13.189.30 | 78.13.189.31 | 30 |
| 10 | 78.13.189.32/27 | 78.13.189.32 | 78.13.189.33 | 78.13.189.62 | 78.13.189.63 | 30 |
| 11 | 78.13.189.64/27 | 78.13.189.64 | 78.13.189.65 | 78.13.189.94 | 78.13.189.95 | 30 |
| 12 | 78.13.189.96/27 | 78.13.189.96 | 78.13.189.97 | 78.13.189.126 | 78.13.189.127 | 30 |
| 13 | 78.13.189.128/27 | 78.13.189.128 | 78.13.189.129 | 78.13.189.158 | 78.13.189.159 | 30 |
| 14 | 78.13.189.160/27 | 78.13.189.160 | 78.13.189.161 | 78.13.189.190 | 78.13.189.191 | 30 |
| 15 | 78.13.189.192/27 | 78.13.189.192 | 78.13.189.193 | 78.13.189.222 | 78.13.189.223 | 30 |
| 16 | 78.13.189.224/27 | 78.13.189.224 | 78.13.189.225 | 78.13.189.254 | 78.13.189.255 | 30 |