28.118.164.0/22
PublicClass A — /22 prefix — 1,022 usable hosts
Network address — the base address of the block (28.118.164.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 28.118.167.255 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 | 28.118.164.0/22 |
| Network Address | 28.118.164.0 |
| Broadcast Address | 28.118.167.255 |
| Subnet Mask | 255.255.252.0 |
| Wildcard Mask | 0.0.3.255 |
| Prefix Length | /22 |
| IP Address Class | Class A |
| Total IP Addresses | 1,024 |
| Usable Host Addresses | 1,022 |
| First Usable IP | 28.118.164.1 |
| Last Usable IP | 28.118.167.254 |
| Network (Hex) | 0x1C76A400 |
| Broadcast (Hex) | 0x1C76A7FF |
| 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 28.118.164.0/22 into 2 equal /23 subnets (510 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.118.164.0/23 | 28.118.164.0 | 28.118.164.1 | 28.118.165.254 | 28.118.165.255 | 510 |
| 2 | 28.118.166.0/23 | 28.118.166.0 | 28.118.166.1 | 28.118.167.254 | 28.118.167.255 | 510 |
Split 28.118.164.0/22 into 4 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.118.164.0/24 | 28.118.164.0 | 28.118.164.1 | 28.118.164.254 | 28.118.164.255 | 254 |
| 2 | 28.118.165.0/24 | 28.118.165.0 | 28.118.165.1 | 28.118.165.254 | 28.118.165.255 | 254 |
| 3 | 28.118.166.0/24 | 28.118.166.0 | 28.118.166.1 | 28.118.166.254 | 28.118.166.255 | 254 |
| 4 | 28.118.167.0/24 | 28.118.167.0 | 28.118.167.1 | 28.118.167.254 | 28.118.167.255 | 254 |
Split 28.118.164.0/22 into 8 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.118.164.0/25 | 28.118.164.0 | 28.118.164.1 | 28.118.164.126 | 28.118.164.127 | 126 |
| 2 | 28.118.164.128/25 | 28.118.164.128 | 28.118.164.129 | 28.118.164.254 | 28.118.164.255 | 126 |
| 3 | 28.118.165.0/25 | 28.118.165.0 | 28.118.165.1 | 28.118.165.126 | 28.118.165.127 | 126 |
| 4 | 28.118.165.128/25 | 28.118.165.128 | 28.118.165.129 | 28.118.165.254 | 28.118.165.255 | 126 |
| 5 | 28.118.166.0/25 | 28.118.166.0 | 28.118.166.1 | 28.118.166.126 | 28.118.166.127 | 126 |
| 6 | 28.118.166.128/25 | 28.118.166.128 | 28.118.166.129 | 28.118.166.254 | 28.118.166.255 | 126 |
| 7 | 28.118.167.0/25 | 28.118.167.0 | 28.118.167.1 | 28.118.167.126 | 28.118.167.127 | 126 |
| 8 | 28.118.167.128/25 | 28.118.167.128 | 28.118.167.129 | 28.118.167.254 | 28.118.167.255 | 126 |
Split 28.118.164.0/22 into 16 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.118.164.0/26 | 28.118.164.0 | 28.118.164.1 | 28.118.164.62 | 28.118.164.63 | 62 |
| 2 | 28.118.164.64/26 | 28.118.164.64 | 28.118.164.65 | 28.118.164.126 | 28.118.164.127 | 62 |
| 3 | 28.118.164.128/26 | 28.118.164.128 | 28.118.164.129 | 28.118.164.190 | 28.118.164.191 | 62 |
| 4 | 28.118.164.192/26 | 28.118.164.192 | 28.118.164.193 | 28.118.164.254 | 28.118.164.255 | 62 |
| 5 | 28.118.165.0/26 | 28.118.165.0 | 28.118.165.1 | 28.118.165.62 | 28.118.165.63 | 62 |
| 6 | 28.118.165.64/26 | 28.118.165.64 | 28.118.165.65 | 28.118.165.126 | 28.118.165.127 | 62 |
| 7 | 28.118.165.128/26 | 28.118.165.128 | 28.118.165.129 | 28.118.165.190 | 28.118.165.191 | 62 |
| 8 | 28.118.165.192/26 | 28.118.165.192 | 28.118.165.193 | 28.118.165.254 | 28.118.165.255 | 62 |
| 9 | 28.118.166.0/26 | 28.118.166.0 | 28.118.166.1 | 28.118.166.62 | 28.118.166.63 | 62 |
| 10 | 28.118.166.64/26 | 28.118.166.64 | 28.118.166.65 | 28.118.166.126 | 28.118.166.127 | 62 |
| 11 | 28.118.166.128/26 | 28.118.166.128 | 28.118.166.129 | 28.118.166.190 | 28.118.166.191 | 62 |
| 12 | 28.118.166.192/26 | 28.118.166.192 | 28.118.166.193 | 28.118.166.254 | 28.118.166.255 | 62 |
| 13 | 28.118.167.0/26 | 28.118.167.0 | 28.118.167.1 | 28.118.167.62 | 28.118.167.63 | 62 |
| 14 | 28.118.167.64/26 | 28.118.167.64 | 28.118.167.65 | 28.118.167.126 | 28.118.167.127 | 62 |
| 15 | 28.118.167.128/26 | 28.118.167.128 | 28.118.167.129 | 28.118.167.190 | 28.118.167.191 | 62 |
| 16 | 28.118.167.192/26 | 28.118.167.192 | 28.118.167.193 | 28.118.167.254 | 28.118.167.255 | 62 |