151.78.36.0/22
PublicClass B — /22 prefix — 1,022 usable hosts
Network address — the base address of the block (151.78.36.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 151.78.39.255 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 | 151.78.36.0/22 |
| Network Address | 151.78.36.0 |
| Broadcast Address | 151.78.39.255 |
| Subnet Mask | 255.255.252.0 |
| Wildcard Mask | 0.0.3.255 |
| Prefix Length | /22 |
| IP Address Class | Class B |
| Total IP Addresses | 1,024 |
| Usable Host Addresses | 1,022 |
| First Usable IP | 151.78.36.1 |
| Last Usable IP | 151.78.39.254 |
| Network (Hex) | 0x974E2400 |
| Broadcast (Hex) | 0x974E27FF |
| 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 151.78.36.0/22 into 2 equal /23 subnets (510 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 151.78.36.0/23 | 151.78.36.0 | 151.78.36.1 | 151.78.37.254 | 151.78.37.255 | 510 |
| 2 | 151.78.38.0/23 | 151.78.38.0 | 151.78.38.1 | 151.78.39.254 | 151.78.39.255 | 510 |
Split 151.78.36.0/22 into 4 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 151.78.36.0/24 | 151.78.36.0 | 151.78.36.1 | 151.78.36.254 | 151.78.36.255 | 254 |
| 2 | 151.78.37.0/24 | 151.78.37.0 | 151.78.37.1 | 151.78.37.254 | 151.78.37.255 | 254 |
| 3 | 151.78.38.0/24 | 151.78.38.0 | 151.78.38.1 | 151.78.38.254 | 151.78.38.255 | 254 |
| 4 | 151.78.39.0/24 | 151.78.39.0 | 151.78.39.1 | 151.78.39.254 | 151.78.39.255 | 254 |
Split 151.78.36.0/22 into 8 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 151.78.36.0/25 | 151.78.36.0 | 151.78.36.1 | 151.78.36.126 | 151.78.36.127 | 126 |
| 2 | 151.78.36.128/25 | 151.78.36.128 | 151.78.36.129 | 151.78.36.254 | 151.78.36.255 | 126 |
| 3 | 151.78.37.0/25 | 151.78.37.0 | 151.78.37.1 | 151.78.37.126 | 151.78.37.127 | 126 |
| 4 | 151.78.37.128/25 | 151.78.37.128 | 151.78.37.129 | 151.78.37.254 | 151.78.37.255 | 126 |
| 5 | 151.78.38.0/25 | 151.78.38.0 | 151.78.38.1 | 151.78.38.126 | 151.78.38.127 | 126 |
| 6 | 151.78.38.128/25 | 151.78.38.128 | 151.78.38.129 | 151.78.38.254 | 151.78.38.255 | 126 |
| 7 | 151.78.39.0/25 | 151.78.39.0 | 151.78.39.1 | 151.78.39.126 | 151.78.39.127 | 126 |
| 8 | 151.78.39.128/25 | 151.78.39.128 | 151.78.39.129 | 151.78.39.254 | 151.78.39.255 | 126 |
Split 151.78.36.0/22 into 16 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 151.78.36.0/26 | 151.78.36.0 | 151.78.36.1 | 151.78.36.62 | 151.78.36.63 | 62 |
| 2 | 151.78.36.64/26 | 151.78.36.64 | 151.78.36.65 | 151.78.36.126 | 151.78.36.127 | 62 |
| 3 | 151.78.36.128/26 | 151.78.36.128 | 151.78.36.129 | 151.78.36.190 | 151.78.36.191 | 62 |
| 4 | 151.78.36.192/26 | 151.78.36.192 | 151.78.36.193 | 151.78.36.254 | 151.78.36.255 | 62 |
| 5 | 151.78.37.0/26 | 151.78.37.0 | 151.78.37.1 | 151.78.37.62 | 151.78.37.63 | 62 |
| 6 | 151.78.37.64/26 | 151.78.37.64 | 151.78.37.65 | 151.78.37.126 | 151.78.37.127 | 62 |
| 7 | 151.78.37.128/26 | 151.78.37.128 | 151.78.37.129 | 151.78.37.190 | 151.78.37.191 | 62 |
| 8 | 151.78.37.192/26 | 151.78.37.192 | 151.78.37.193 | 151.78.37.254 | 151.78.37.255 | 62 |
| 9 | 151.78.38.0/26 | 151.78.38.0 | 151.78.38.1 | 151.78.38.62 | 151.78.38.63 | 62 |
| 10 | 151.78.38.64/26 | 151.78.38.64 | 151.78.38.65 | 151.78.38.126 | 151.78.38.127 | 62 |
| 11 | 151.78.38.128/26 | 151.78.38.128 | 151.78.38.129 | 151.78.38.190 | 151.78.38.191 | 62 |
| 12 | 151.78.38.192/26 | 151.78.38.192 | 151.78.38.193 | 151.78.38.254 | 151.78.38.255 | 62 |
| 13 | 151.78.39.0/26 | 151.78.39.0 | 151.78.39.1 | 151.78.39.62 | 151.78.39.63 | 62 |
| 14 | 151.78.39.64/26 | 151.78.39.64 | 151.78.39.65 | 151.78.39.126 | 151.78.39.127 | 62 |
| 15 | 151.78.39.128/26 | 151.78.39.128 | 151.78.39.129 | 151.78.39.190 | 151.78.39.191 | 62 |
| 16 | 151.78.39.192/26 | 151.78.39.192 | 151.78.39.193 | 151.78.39.254 | 151.78.39.255 | 62 |