42.252.248.0/23
PublicClass A — /23 prefix — 510 usable hosts
Network address — the base address of the block (42.252.248.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 42.252.249.255 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 | 42.252.248.0/23 |
| Network Address | 42.252.248.0 |
| Broadcast Address | 42.252.249.255 |
| 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 | 42.252.248.1 |
| Last Usable IP | 42.252.249.254 |
| Network (Hex) | 0x2AFCF800 |
| Broadcast (Hex) | 0x2AFCF9FF |
| 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 42.252.248.0/23 into 2 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 42.252.248.0/24 | 42.252.248.0 | 42.252.248.1 | 42.252.248.254 | 42.252.248.255 | 254 |
| 2 | 42.252.249.0/24 | 42.252.249.0 | 42.252.249.1 | 42.252.249.254 | 42.252.249.255 | 254 |
Split 42.252.248.0/23 into 4 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 42.252.248.0/25 | 42.252.248.0 | 42.252.248.1 | 42.252.248.126 | 42.252.248.127 | 126 |
| 2 | 42.252.248.128/25 | 42.252.248.128 | 42.252.248.129 | 42.252.248.254 | 42.252.248.255 | 126 |
| 3 | 42.252.249.0/25 | 42.252.249.0 | 42.252.249.1 | 42.252.249.126 | 42.252.249.127 | 126 |
| 4 | 42.252.249.128/25 | 42.252.249.128 | 42.252.249.129 | 42.252.249.254 | 42.252.249.255 | 126 |
Split 42.252.248.0/23 into 8 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 42.252.248.0/26 | 42.252.248.0 | 42.252.248.1 | 42.252.248.62 | 42.252.248.63 | 62 |
| 2 | 42.252.248.64/26 | 42.252.248.64 | 42.252.248.65 | 42.252.248.126 | 42.252.248.127 | 62 |
| 3 | 42.252.248.128/26 | 42.252.248.128 | 42.252.248.129 | 42.252.248.190 | 42.252.248.191 | 62 |
| 4 | 42.252.248.192/26 | 42.252.248.192 | 42.252.248.193 | 42.252.248.254 | 42.252.248.255 | 62 |
| 5 | 42.252.249.0/26 | 42.252.249.0 | 42.252.249.1 | 42.252.249.62 | 42.252.249.63 | 62 |
| 6 | 42.252.249.64/26 | 42.252.249.64 | 42.252.249.65 | 42.252.249.126 | 42.252.249.127 | 62 |
| 7 | 42.252.249.128/26 | 42.252.249.128 | 42.252.249.129 | 42.252.249.190 | 42.252.249.191 | 62 |
| 8 | 42.252.249.192/26 | 42.252.249.192 | 42.252.249.193 | 42.252.249.254 | 42.252.249.255 | 62 |
Split 42.252.248.0/23 into 16 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 42.252.248.0/27 | 42.252.248.0 | 42.252.248.1 | 42.252.248.30 | 42.252.248.31 | 30 |
| 2 | 42.252.248.32/27 | 42.252.248.32 | 42.252.248.33 | 42.252.248.62 | 42.252.248.63 | 30 |
| 3 | 42.252.248.64/27 | 42.252.248.64 | 42.252.248.65 | 42.252.248.94 | 42.252.248.95 | 30 |
| 4 | 42.252.248.96/27 | 42.252.248.96 | 42.252.248.97 | 42.252.248.126 | 42.252.248.127 | 30 |
| 5 | 42.252.248.128/27 | 42.252.248.128 | 42.252.248.129 | 42.252.248.158 | 42.252.248.159 | 30 |
| 6 | 42.252.248.160/27 | 42.252.248.160 | 42.252.248.161 | 42.252.248.190 | 42.252.248.191 | 30 |
| 7 | 42.252.248.192/27 | 42.252.248.192 | 42.252.248.193 | 42.252.248.222 | 42.252.248.223 | 30 |
| 8 | 42.252.248.224/27 | 42.252.248.224 | 42.252.248.225 | 42.252.248.254 | 42.252.248.255 | 30 |
| 9 | 42.252.249.0/27 | 42.252.249.0 | 42.252.249.1 | 42.252.249.30 | 42.252.249.31 | 30 |
| 10 | 42.252.249.32/27 | 42.252.249.32 | 42.252.249.33 | 42.252.249.62 | 42.252.249.63 | 30 |
| 11 | 42.252.249.64/27 | 42.252.249.64 | 42.252.249.65 | 42.252.249.94 | 42.252.249.95 | 30 |
| 12 | 42.252.249.96/27 | 42.252.249.96 | 42.252.249.97 | 42.252.249.126 | 42.252.249.127 | 30 |
| 13 | 42.252.249.128/27 | 42.252.249.128 | 42.252.249.129 | 42.252.249.158 | 42.252.249.159 | 30 |
| 14 | 42.252.249.160/27 | 42.252.249.160 | 42.252.249.161 | 42.252.249.190 | 42.252.249.191 | 30 |
| 15 | 42.252.249.192/27 | 42.252.249.192 | 42.252.249.193 | 42.252.249.222 | 42.252.249.223 | 30 |
| 16 | 42.252.249.224/27 | 42.252.249.224 | 42.252.249.225 | 42.252.249.254 | 42.252.249.255 | 30 |