127.215.236.0/22
Loopback RFC 5735Class A — /22 prefix — 1,022 usable hosts
Network address — the base address of the block (127.215.236.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 127.215.239.255 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 | 127.215.236.0/22 |
| Network Address | 127.215.236.0 |
| Broadcast Address | 127.215.239.255 |
| 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 | 127.215.236.1 |
| Last Usable IP | 127.215.239.254 |
| Network (Hex) | 0x7FD7EC00 |
| Broadcast (Hex) | 0x7FD7EFFF |
| Governing RFC | RFC 5735 |
| Address Type | Loopback |
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 127.215.236.0/22 into 2 equal /23 subnets (510 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 127.215.236.0/23 | 127.215.236.0 | 127.215.236.1 | 127.215.237.254 | 127.215.237.255 | 510 |
| 2 | 127.215.238.0/23 | 127.215.238.0 | 127.215.238.1 | 127.215.239.254 | 127.215.239.255 | 510 |
Split 127.215.236.0/22 into 4 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 127.215.236.0/24 | 127.215.236.0 | 127.215.236.1 | 127.215.236.254 | 127.215.236.255 | 254 |
| 2 | 127.215.237.0/24 | 127.215.237.0 | 127.215.237.1 | 127.215.237.254 | 127.215.237.255 | 254 |
| 3 | 127.215.238.0/24 | 127.215.238.0 | 127.215.238.1 | 127.215.238.254 | 127.215.238.255 | 254 |
| 4 | 127.215.239.0/24 | 127.215.239.0 | 127.215.239.1 | 127.215.239.254 | 127.215.239.255 | 254 |
Split 127.215.236.0/22 into 8 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 127.215.236.0/25 | 127.215.236.0 | 127.215.236.1 | 127.215.236.126 | 127.215.236.127 | 126 |
| 2 | 127.215.236.128/25 | 127.215.236.128 | 127.215.236.129 | 127.215.236.254 | 127.215.236.255 | 126 |
| 3 | 127.215.237.0/25 | 127.215.237.0 | 127.215.237.1 | 127.215.237.126 | 127.215.237.127 | 126 |
| 4 | 127.215.237.128/25 | 127.215.237.128 | 127.215.237.129 | 127.215.237.254 | 127.215.237.255 | 126 |
| 5 | 127.215.238.0/25 | 127.215.238.0 | 127.215.238.1 | 127.215.238.126 | 127.215.238.127 | 126 |
| 6 | 127.215.238.128/25 | 127.215.238.128 | 127.215.238.129 | 127.215.238.254 | 127.215.238.255 | 126 |
| 7 | 127.215.239.0/25 | 127.215.239.0 | 127.215.239.1 | 127.215.239.126 | 127.215.239.127 | 126 |
| 8 | 127.215.239.128/25 | 127.215.239.128 | 127.215.239.129 | 127.215.239.254 | 127.215.239.255 | 126 |
Split 127.215.236.0/22 into 16 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 127.215.236.0/26 | 127.215.236.0 | 127.215.236.1 | 127.215.236.62 | 127.215.236.63 | 62 |
| 2 | 127.215.236.64/26 | 127.215.236.64 | 127.215.236.65 | 127.215.236.126 | 127.215.236.127 | 62 |
| 3 | 127.215.236.128/26 | 127.215.236.128 | 127.215.236.129 | 127.215.236.190 | 127.215.236.191 | 62 |
| 4 | 127.215.236.192/26 | 127.215.236.192 | 127.215.236.193 | 127.215.236.254 | 127.215.236.255 | 62 |
| 5 | 127.215.237.0/26 | 127.215.237.0 | 127.215.237.1 | 127.215.237.62 | 127.215.237.63 | 62 |
| 6 | 127.215.237.64/26 | 127.215.237.64 | 127.215.237.65 | 127.215.237.126 | 127.215.237.127 | 62 |
| 7 | 127.215.237.128/26 | 127.215.237.128 | 127.215.237.129 | 127.215.237.190 | 127.215.237.191 | 62 |
| 8 | 127.215.237.192/26 | 127.215.237.192 | 127.215.237.193 | 127.215.237.254 | 127.215.237.255 | 62 |
| 9 | 127.215.238.0/26 | 127.215.238.0 | 127.215.238.1 | 127.215.238.62 | 127.215.238.63 | 62 |
| 10 | 127.215.238.64/26 | 127.215.238.64 | 127.215.238.65 | 127.215.238.126 | 127.215.238.127 | 62 |
| 11 | 127.215.238.128/26 | 127.215.238.128 | 127.215.238.129 | 127.215.238.190 | 127.215.238.191 | 62 |
| 12 | 127.215.238.192/26 | 127.215.238.192 | 127.215.238.193 | 127.215.238.254 | 127.215.238.255 | 62 |
| 13 | 127.215.239.0/26 | 127.215.239.0 | 127.215.239.1 | 127.215.239.62 | 127.215.239.63 | 62 |
| 14 | 127.215.239.64/26 | 127.215.239.64 | 127.215.239.65 | 127.215.239.126 | 127.215.239.127 | 62 |
| 15 | 127.215.239.128/26 | 127.215.239.128 | 127.215.239.129 | 127.215.239.190 | 127.215.239.191 | 62 |
| 16 | 127.215.239.192/26 | 127.215.239.192 | 127.215.239.193 | 127.215.239.254 | 127.215.239.255 | 62 |