213.237.56.0/22
PublicClass C — /22 prefix — 1,022 usable hosts
Network address — the base address of the block (213.237.56.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 213.237.59.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 1,022 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.252.0 is the dotted-decimal equivalent of /22. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 213.237.56.0/22 |
| Network Address | 213.237.56.0 |
| Broadcast Address | 213.237.59.255 |
| Subnet Mask | 255.255.252.0 |
| Wildcard Mask | 0.0.3.255 |
| Prefix Length | /22 |
| IP Address Class | Class C |
| Total IP Addresses | 1,024 |
| Usable Host Addresses | 1,022 |
| First Usable IP | 213.237.56.1 |
| Last Usable IP | 213.237.59.254 |
| Network (Hex) | 0xD5ED3800 |
| Broadcast (Hex) | 0xD5ED3BFF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 22 bits (1s in the mask) identify the network. The remaining 10 bits identify hosts within the network.
Split into Equal Subnets
Split 213.237.56.0/22 into 2 equal /23 subnets (510 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 213.237.56.0/23 | 213.237.56.0 | 213.237.56.1 | 213.237.57.254 | 213.237.57.255 | 510 |
| 2 | 213.237.58.0/23 | 213.237.58.0 | 213.237.58.1 | 213.237.59.254 | 213.237.59.255 | 510 |
Split 213.237.56.0/22 into 4 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 213.237.56.0/24 | 213.237.56.0 | 213.237.56.1 | 213.237.56.254 | 213.237.56.255 | 254 |
| 2 | 213.237.57.0/24 | 213.237.57.0 | 213.237.57.1 | 213.237.57.254 | 213.237.57.255 | 254 |
| 3 | 213.237.58.0/24 | 213.237.58.0 | 213.237.58.1 | 213.237.58.254 | 213.237.58.255 | 254 |
| 4 | 213.237.59.0/24 | 213.237.59.0 | 213.237.59.1 | 213.237.59.254 | 213.237.59.255 | 254 |
Split 213.237.56.0/22 into 8 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 213.237.56.0/25 | 213.237.56.0 | 213.237.56.1 | 213.237.56.126 | 213.237.56.127 | 126 |
| 2 | 213.237.56.128/25 | 213.237.56.128 | 213.237.56.129 | 213.237.56.254 | 213.237.56.255 | 126 |
| 3 | 213.237.57.0/25 | 213.237.57.0 | 213.237.57.1 | 213.237.57.126 | 213.237.57.127 | 126 |
| 4 | 213.237.57.128/25 | 213.237.57.128 | 213.237.57.129 | 213.237.57.254 | 213.237.57.255 | 126 |
| 5 | 213.237.58.0/25 | 213.237.58.0 | 213.237.58.1 | 213.237.58.126 | 213.237.58.127 | 126 |
| 6 | 213.237.58.128/25 | 213.237.58.128 | 213.237.58.129 | 213.237.58.254 | 213.237.58.255 | 126 |
| 7 | 213.237.59.0/25 | 213.237.59.0 | 213.237.59.1 | 213.237.59.126 | 213.237.59.127 | 126 |
| 8 | 213.237.59.128/25 | 213.237.59.128 | 213.237.59.129 | 213.237.59.254 | 213.237.59.255 | 126 |
Split 213.237.56.0/22 into 16 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 213.237.56.0/26 | 213.237.56.0 | 213.237.56.1 | 213.237.56.62 | 213.237.56.63 | 62 |
| 2 | 213.237.56.64/26 | 213.237.56.64 | 213.237.56.65 | 213.237.56.126 | 213.237.56.127 | 62 |
| 3 | 213.237.56.128/26 | 213.237.56.128 | 213.237.56.129 | 213.237.56.190 | 213.237.56.191 | 62 |
| 4 | 213.237.56.192/26 | 213.237.56.192 | 213.237.56.193 | 213.237.56.254 | 213.237.56.255 | 62 |
| 5 | 213.237.57.0/26 | 213.237.57.0 | 213.237.57.1 | 213.237.57.62 | 213.237.57.63 | 62 |
| 6 | 213.237.57.64/26 | 213.237.57.64 | 213.237.57.65 | 213.237.57.126 | 213.237.57.127 | 62 |
| 7 | 213.237.57.128/26 | 213.237.57.128 | 213.237.57.129 | 213.237.57.190 | 213.237.57.191 | 62 |
| 8 | 213.237.57.192/26 | 213.237.57.192 | 213.237.57.193 | 213.237.57.254 | 213.237.57.255 | 62 |
| 9 | 213.237.58.0/26 | 213.237.58.0 | 213.237.58.1 | 213.237.58.62 | 213.237.58.63 | 62 |
| 10 | 213.237.58.64/26 | 213.237.58.64 | 213.237.58.65 | 213.237.58.126 | 213.237.58.127 | 62 |
| 11 | 213.237.58.128/26 | 213.237.58.128 | 213.237.58.129 | 213.237.58.190 | 213.237.58.191 | 62 |
| 12 | 213.237.58.192/26 | 213.237.58.192 | 213.237.58.193 | 213.237.58.254 | 213.237.58.255 | 62 |
| 13 | 213.237.59.0/26 | 213.237.59.0 | 213.237.59.1 | 213.237.59.62 | 213.237.59.63 | 62 |
| 14 | 213.237.59.64/26 | 213.237.59.64 | 213.237.59.65 | 213.237.59.126 | 213.237.59.127 | 62 |
| 15 | 213.237.59.128/26 | 213.237.59.128 | 213.237.59.129 | 213.237.59.190 | 213.237.59.191 | 62 |
| 16 | 213.237.59.192/26 | 213.237.59.192 | 213.237.59.193 | 213.237.59.254 | 213.237.59.255 | 62 |