151.75.0.0/22
PublicClass B — /22 prefix — 1,022 usable hosts
Network address — the base address of the block (151.75.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 151.75.3.255 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 | 151.75.0.0/22 |
| Network Address | 151.75.0.0 |
| Broadcast Address | 151.75.3.255 |
| 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 | 151.75.0.1 |
| Last Usable IP | 151.75.3.254 |
| Network (Hex) | 0x974B0000 |
| Broadcast (Hex) | 0x974B03FF |
| 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 151.75.0.0/22 into 2 equal /23 subnets (510 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 151.75.0.0/23 | 151.75.0.0 | 151.75.0.1 | 151.75.1.254 | 151.75.1.255 | 510 |
| 2 | 151.75.2.0/23 | 151.75.2.0 | 151.75.2.1 | 151.75.3.254 | 151.75.3.255 | 510 |
Split 151.75.0.0/22 into 4 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 151.75.0.0/24 | 151.75.0.0 | 151.75.0.1 | 151.75.0.254 | 151.75.0.255 | 254 |
| 2 | 151.75.1.0/24 | 151.75.1.0 | 151.75.1.1 | 151.75.1.254 | 151.75.1.255 | 254 |
| 3 | 151.75.2.0/24 | 151.75.2.0 | 151.75.2.1 | 151.75.2.254 | 151.75.2.255 | 254 |
| 4 | 151.75.3.0/24 | 151.75.3.0 | 151.75.3.1 | 151.75.3.254 | 151.75.3.255 | 254 |
Split 151.75.0.0/22 into 8 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 151.75.0.0/25 | 151.75.0.0 | 151.75.0.1 | 151.75.0.126 | 151.75.0.127 | 126 |
| 2 | 151.75.0.128/25 | 151.75.0.128 | 151.75.0.129 | 151.75.0.254 | 151.75.0.255 | 126 |
| 3 | 151.75.1.0/25 | 151.75.1.0 | 151.75.1.1 | 151.75.1.126 | 151.75.1.127 | 126 |
| 4 | 151.75.1.128/25 | 151.75.1.128 | 151.75.1.129 | 151.75.1.254 | 151.75.1.255 | 126 |
| 5 | 151.75.2.0/25 | 151.75.2.0 | 151.75.2.1 | 151.75.2.126 | 151.75.2.127 | 126 |
| 6 | 151.75.2.128/25 | 151.75.2.128 | 151.75.2.129 | 151.75.2.254 | 151.75.2.255 | 126 |
| 7 | 151.75.3.0/25 | 151.75.3.0 | 151.75.3.1 | 151.75.3.126 | 151.75.3.127 | 126 |
| 8 | 151.75.3.128/25 | 151.75.3.128 | 151.75.3.129 | 151.75.3.254 | 151.75.3.255 | 126 |
Split 151.75.0.0/22 into 16 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 151.75.0.0/26 | 151.75.0.0 | 151.75.0.1 | 151.75.0.62 | 151.75.0.63 | 62 |
| 2 | 151.75.0.64/26 | 151.75.0.64 | 151.75.0.65 | 151.75.0.126 | 151.75.0.127 | 62 |
| 3 | 151.75.0.128/26 | 151.75.0.128 | 151.75.0.129 | 151.75.0.190 | 151.75.0.191 | 62 |
| 4 | 151.75.0.192/26 | 151.75.0.192 | 151.75.0.193 | 151.75.0.254 | 151.75.0.255 | 62 |
| 5 | 151.75.1.0/26 | 151.75.1.0 | 151.75.1.1 | 151.75.1.62 | 151.75.1.63 | 62 |
| 6 | 151.75.1.64/26 | 151.75.1.64 | 151.75.1.65 | 151.75.1.126 | 151.75.1.127 | 62 |
| 7 | 151.75.1.128/26 | 151.75.1.128 | 151.75.1.129 | 151.75.1.190 | 151.75.1.191 | 62 |
| 8 | 151.75.1.192/26 | 151.75.1.192 | 151.75.1.193 | 151.75.1.254 | 151.75.1.255 | 62 |
| 9 | 151.75.2.0/26 | 151.75.2.0 | 151.75.2.1 | 151.75.2.62 | 151.75.2.63 | 62 |
| 10 | 151.75.2.64/26 | 151.75.2.64 | 151.75.2.65 | 151.75.2.126 | 151.75.2.127 | 62 |
| 11 | 151.75.2.128/26 | 151.75.2.128 | 151.75.2.129 | 151.75.2.190 | 151.75.2.191 | 62 |
| 12 | 151.75.2.192/26 | 151.75.2.192 | 151.75.2.193 | 151.75.2.254 | 151.75.2.255 | 62 |
| 13 | 151.75.3.0/26 | 151.75.3.0 | 151.75.3.1 | 151.75.3.62 | 151.75.3.63 | 62 |
| 14 | 151.75.3.64/26 | 151.75.3.64 | 151.75.3.65 | 151.75.3.126 | 151.75.3.127 | 62 |
| 15 | 151.75.3.128/26 | 151.75.3.128 | 151.75.3.129 | 151.75.3.190 | 151.75.3.191 | 62 |
| 16 | 151.75.3.192/26 | 151.75.3.192 | 151.75.3.193 | 151.75.3.254 | 151.75.3.255 | 62 |