5.151.236.0/23
PublicClass A — /23 prefix — 510 usable hosts
Network address — the base address of the block (5.151.236.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 5.151.237.255 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 | 5.151.236.0/23 |
| Network Address | 5.151.236.0 |
| Broadcast Address | 5.151.237.255 |
| 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 | 5.151.236.1 |
| Last Usable IP | 5.151.237.254 |
| Network (Hex) | 0x0597EC00 |
| Broadcast (Hex) | 0x0597EDFF |
| 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 5.151.236.0/23 into 2 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 5.151.236.0/24 | 5.151.236.0 | 5.151.236.1 | 5.151.236.254 | 5.151.236.255 | 254 |
| 2 | 5.151.237.0/24 | 5.151.237.0 | 5.151.237.1 | 5.151.237.254 | 5.151.237.255 | 254 |
Split 5.151.236.0/23 into 4 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 5.151.236.0/25 | 5.151.236.0 | 5.151.236.1 | 5.151.236.126 | 5.151.236.127 | 126 |
| 2 | 5.151.236.128/25 | 5.151.236.128 | 5.151.236.129 | 5.151.236.254 | 5.151.236.255 | 126 |
| 3 | 5.151.237.0/25 | 5.151.237.0 | 5.151.237.1 | 5.151.237.126 | 5.151.237.127 | 126 |
| 4 | 5.151.237.128/25 | 5.151.237.128 | 5.151.237.129 | 5.151.237.254 | 5.151.237.255 | 126 |
Split 5.151.236.0/23 into 8 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 5.151.236.0/26 | 5.151.236.0 | 5.151.236.1 | 5.151.236.62 | 5.151.236.63 | 62 |
| 2 | 5.151.236.64/26 | 5.151.236.64 | 5.151.236.65 | 5.151.236.126 | 5.151.236.127 | 62 |
| 3 | 5.151.236.128/26 | 5.151.236.128 | 5.151.236.129 | 5.151.236.190 | 5.151.236.191 | 62 |
| 4 | 5.151.236.192/26 | 5.151.236.192 | 5.151.236.193 | 5.151.236.254 | 5.151.236.255 | 62 |
| 5 | 5.151.237.0/26 | 5.151.237.0 | 5.151.237.1 | 5.151.237.62 | 5.151.237.63 | 62 |
| 6 | 5.151.237.64/26 | 5.151.237.64 | 5.151.237.65 | 5.151.237.126 | 5.151.237.127 | 62 |
| 7 | 5.151.237.128/26 | 5.151.237.128 | 5.151.237.129 | 5.151.237.190 | 5.151.237.191 | 62 |
| 8 | 5.151.237.192/26 | 5.151.237.192 | 5.151.237.193 | 5.151.237.254 | 5.151.237.255 | 62 |
Split 5.151.236.0/23 into 16 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 5.151.236.0/27 | 5.151.236.0 | 5.151.236.1 | 5.151.236.30 | 5.151.236.31 | 30 |
| 2 | 5.151.236.32/27 | 5.151.236.32 | 5.151.236.33 | 5.151.236.62 | 5.151.236.63 | 30 |
| 3 | 5.151.236.64/27 | 5.151.236.64 | 5.151.236.65 | 5.151.236.94 | 5.151.236.95 | 30 |
| 4 | 5.151.236.96/27 | 5.151.236.96 | 5.151.236.97 | 5.151.236.126 | 5.151.236.127 | 30 |
| 5 | 5.151.236.128/27 | 5.151.236.128 | 5.151.236.129 | 5.151.236.158 | 5.151.236.159 | 30 |
| 6 | 5.151.236.160/27 | 5.151.236.160 | 5.151.236.161 | 5.151.236.190 | 5.151.236.191 | 30 |
| 7 | 5.151.236.192/27 | 5.151.236.192 | 5.151.236.193 | 5.151.236.222 | 5.151.236.223 | 30 |
| 8 | 5.151.236.224/27 | 5.151.236.224 | 5.151.236.225 | 5.151.236.254 | 5.151.236.255 | 30 |
| 9 | 5.151.237.0/27 | 5.151.237.0 | 5.151.237.1 | 5.151.237.30 | 5.151.237.31 | 30 |
| 10 | 5.151.237.32/27 | 5.151.237.32 | 5.151.237.33 | 5.151.237.62 | 5.151.237.63 | 30 |
| 11 | 5.151.237.64/27 | 5.151.237.64 | 5.151.237.65 | 5.151.237.94 | 5.151.237.95 | 30 |
| 12 | 5.151.237.96/27 | 5.151.237.96 | 5.151.237.97 | 5.151.237.126 | 5.151.237.127 | 30 |
| 13 | 5.151.237.128/27 | 5.151.237.128 | 5.151.237.129 | 5.151.237.158 | 5.151.237.159 | 30 |
| 14 | 5.151.237.160/27 | 5.151.237.160 | 5.151.237.161 | 5.151.237.190 | 5.151.237.191 | 30 |
| 15 | 5.151.237.192/27 | 5.151.237.192 | 5.151.237.193 | 5.151.237.222 | 5.151.237.223 | 30 |
| 16 | 5.151.237.224/27 | 5.151.237.224 | 5.151.237.225 | 5.151.237.254 | 5.151.237.255 | 30 |