230.128.96.0/22
Multicast RFC 5771Class D (Multicast) — /22 prefix — 1,022 usable hosts
Network address — the base address of the block (230.128.96.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 230.128.99.255 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 | 230.128.96.0/22 |
| Network Address | 230.128.96.0 |
| Broadcast Address | 230.128.99.255 |
| Subnet Mask | 255.255.252.0 |
| Wildcard Mask | 0.0.3.255 |
| Prefix Length | /22 |
| IP Address Class | Class D (Multicast) |
| Total IP Addresses | 1,024 |
| Usable Host Addresses | 1,022 |
| First Usable IP | 230.128.96.1 |
| Last Usable IP | 230.128.99.254 |
| Network (Hex) | 0xE6806000 |
| Broadcast (Hex) | 0xE68063FF |
| Governing RFC | RFC 5771 |
| Address Type | Multicast |
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 230.128.96.0/22 into 2 equal /23 subnets (510 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 230.128.96.0/23 | 230.128.96.0 | 230.128.96.1 | 230.128.97.254 | 230.128.97.255 | 510 |
| 2 | 230.128.98.0/23 | 230.128.98.0 | 230.128.98.1 | 230.128.99.254 | 230.128.99.255 | 510 |
Split 230.128.96.0/22 into 4 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 230.128.96.0/24 | 230.128.96.0 | 230.128.96.1 | 230.128.96.254 | 230.128.96.255 | 254 |
| 2 | 230.128.97.0/24 | 230.128.97.0 | 230.128.97.1 | 230.128.97.254 | 230.128.97.255 | 254 |
| 3 | 230.128.98.0/24 | 230.128.98.0 | 230.128.98.1 | 230.128.98.254 | 230.128.98.255 | 254 |
| 4 | 230.128.99.0/24 | 230.128.99.0 | 230.128.99.1 | 230.128.99.254 | 230.128.99.255 | 254 |
Split 230.128.96.0/22 into 8 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 230.128.96.0/25 | 230.128.96.0 | 230.128.96.1 | 230.128.96.126 | 230.128.96.127 | 126 |
| 2 | 230.128.96.128/25 | 230.128.96.128 | 230.128.96.129 | 230.128.96.254 | 230.128.96.255 | 126 |
| 3 | 230.128.97.0/25 | 230.128.97.0 | 230.128.97.1 | 230.128.97.126 | 230.128.97.127 | 126 |
| 4 | 230.128.97.128/25 | 230.128.97.128 | 230.128.97.129 | 230.128.97.254 | 230.128.97.255 | 126 |
| 5 | 230.128.98.0/25 | 230.128.98.0 | 230.128.98.1 | 230.128.98.126 | 230.128.98.127 | 126 |
| 6 | 230.128.98.128/25 | 230.128.98.128 | 230.128.98.129 | 230.128.98.254 | 230.128.98.255 | 126 |
| 7 | 230.128.99.0/25 | 230.128.99.0 | 230.128.99.1 | 230.128.99.126 | 230.128.99.127 | 126 |
| 8 | 230.128.99.128/25 | 230.128.99.128 | 230.128.99.129 | 230.128.99.254 | 230.128.99.255 | 126 |
Split 230.128.96.0/22 into 16 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 230.128.96.0/26 | 230.128.96.0 | 230.128.96.1 | 230.128.96.62 | 230.128.96.63 | 62 |
| 2 | 230.128.96.64/26 | 230.128.96.64 | 230.128.96.65 | 230.128.96.126 | 230.128.96.127 | 62 |
| 3 | 230.128.96.128/26 | 230.128.96.128 | 230.128.96.129 | 230.128.96.190 | 230.128.96.191 | 62 |
| 4 | 230.128.96.192/26 | 230.128.96.192 | 230.128.96.193 | 230.128.96.254 | 230.128.96.255 | 62 |
| 5 | 230.128.97.0/26 | 230.128.97.0 | 230.128.97.1 | 230.128.97.62 | 230.128.97.63 | 62 |
| 6 | 230.128.97.64/26 | 230.128.97.64 | 230.128.97.65 | 230.128.97.126 | 230.128.97.127 | 62 |
| 7 | 230.128.97.128/26 | 230.128.97.128 | 230.128.97.129 | 230.128.97.190 | 230.128.97.191 | 62 |
| 8 | 230.128.97.192/26 | 230.128.97.192 | 230.128.97.193 | 230.128.97.254 | 230.128.97.255 | 62 |
| 9 | 230.128.98.0/26 | 230.128.98.0 | 230.128.98.1 | 230.128.98.62 | 230.128.98.63 | 62 |
| 10 | 230.128.98.64/26 | 230.128.98.64 | 230.128.98.65 | 230.128.98.126 | 230.128.98.127 | 62 |
| 11 | 230.128.98.128/26 | 230.128.98.128 | 230.128.98.129 | 230.128.98.190 | 230.128.98.191 | 62 |
| 12 | 230.128.98.192/26 | 230.128.98.192 | 230.128.98.193 | 230.128.98.254 | 230.128.98.255 | 62 |
| 13 | 230.128.99.0/26 | 230.128.99.0 | 230.128.99.1 | 230.128.99.62 | 230.128.99.63 | 62 |
| 14 | 230.128.99.64/26 | 230.128.99.64 | 230.128.99.65 | 230.128.99.126 | 230.128.99.127 | 62 |
| 15 | 230.128.99.128/26 | 230.128.99.128 | 230.128.99.129 | 230.128.99.190 | 230.128.99.191 | 62 |
| 16 | 230.128.99.192/26 | 230.128.99.192 | 230.128.99.193 | 230.128.99.254 | 230.128.99.255 | 62 |