244.66.238.0/23
PublicClass E (Reserved) — /23 prefix — 510 usable hosts
Network address — the base address of the block (244.66.238.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 244.66.239.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 510 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.254.0 is the dotted-decimal equivalent of /23. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 244.66.238.0/23 |
| Network Address | 244.66.238.0 |
| Broadcast Address | 244.66.239.255 |
| Subnet Mask | 255.255.254.0 |
| Wildcard Mask | 0.0.1.255 |
| Prefix Length | /23 |
| IP Address Class | Class E (Reserved) |
| Total IP Addresses | 512 |
| Usable Host Addresses | 510 |
| First Usable IP | 244.66.238.1 |
| Last Usable IP | 244.66.239.254 |
| Network (Hex) | 0xF442EE00 |
| Broadcast (Hex) | 0xF442EFFF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 23 bits (1s in the mask) identify the network. The remaining 9 bits identify hosts within the network.
Split into Equal Subnets
Split 244.66.238.0/23 into 2 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 244.66.238.0/24 | 244.66.238.0 | 244.66.238.1 | 244.66.238.254 | 244.66.238.255 | 254 |
| 2 | 244.66.239.0/24 | 244.66.239.0 | 244.66.239.1 | 244.66.239.254 | 244.66.239.255 | 254 |
Split 244.66.238.0/23 into 4 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 244.66.238.0/25 | 244.66.238.0 | 244.66.238.1 | 244.66.238.126 | 244.66.238.127 | 126 |
| 2 | 244.66.238.128/25 | 244.66.238.128 | 244.66.238.129 | 244.66.238.254 | 244.66.238.255 | 126 |
| 3 | 244.66.239.0/25 | 244.66.239.0 | 244.66.239.1 | 244.66.239.126 | 244.66.239.127 | 126 |
| 4 | 244.66.239.128/25 | 244.66.239.128 | 244.66.239.129 | 244.66.239.254 | 244.66.239.255 | 126 |
Split 244.66.238.0/23 into 8 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 244.66.238.0/26 | 244.66.238.0 | 244.66.238.1 | 244.66.238.62 | 244.66.238.63 | 62 |
| 2 | 244.66.238.64/26 | 244.66.238.64 | 244.66.238.65 | 244.66.238.126 | 244.66.238.127 | 62 |
| 3 | 244.66.238.128/26 | 244.66.238.128 | 244.66.238.129 | 244.66.238.190 | 244.66.238.191 | 62 |
| 4 | 244.66.238.192/26 | 244.66.238.192 | 244.66.238.193 | 244.66.238.254 | 244.66.238.255 | 62 |
| 5 | 244.66.239.0/26 | 244.66.239.0 | 244.66.239.1 | 244.66.239.62 | 244.66.239.63 | 62 |
| 6 | 244.66.239.64/26 | 244.66.239.64 | 244.66.239.65 | 244.66.239.126 | 244.66.239.127 | 62 |
| 7 | 244.66.239.128/26 | 244.66.239.128 | 244.66.239.129 | 244.66.239.190 | 244.66.239.191 | 62 |
| 8 | 244.66.239.192/26 | 244.66.239.192 | 244.66.239.193 | 244.66.239.254 | 244.66.239.255 | 62 |
Split 244.66.238.0/23 into 16 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 244.66.238.0/27 | 244.66.238.0 | 244.66.238.1 | 244.66.238.30 | 244.66.238.31 | 30 |
| 2 | 244.66.238.32/27 | 244.66.238.32 | 244.66.238.33 | 244.66.238.62 | 244.66.238.63 | 30 |
| 3 | 244.66.238.64/27 | 244.66.238.64 | 244.66.238.65 | 244.66.238.94 | 244.66.238.95 | 30 |
| 4 | 244.66.238.96/27 | 244.66.238.96 | 244.66.238.97 | 244.66.238.126 | 244.66.238.127 | 30 |
| 5 | 244.66.238.128/27 | 244.66.238.128 | 244.66.238.129 | 244.66.238.158 | 244.66.238.159 | 30 |
| 6 | 244.66.238.160/27 | 244.66.238.160 | 244.66.238.161 | 244.66.238.190 | 244.66.238.191 | 30 |
| 7 | 244.66.238.192/27 | 244.66.238.192 | 244.66.238.193 | 244.66.238.222 | 244.66.238.223 | 30 |
| 8 | 244.66.238.224/27 | 244.66.238.224 | 244.66.238.225 | 244.66.238.254 | 244.66.238.255 | 30 |
| 9 | 244.66.239.0/27 | 244.66.239.0 | 244.66.239.1 | 244.66.239.30 | 244.66.239.31 | 30 |
| 10 | 244.66.239.32/27 | 244.66.239.32 | 244.66.239.33 | 244.66.239.62 | 244.66.239.63 | 30 |
| 11 | 244.66.239.64/27 | 244.66.239.64 | 244.66.239.65 | 244.66.239.94 | 244.66.239.95 | 30 |
| 12 | 244.66.239.96/27 | 244.66.239.96 | 244.66.239.97 | 244.66.239.126 | 244.66.239.127 | 30 |
| 13 | 244.66.239.128/27 | 244.66.239.128 | 244.66.239.129 | 244.66.239.158 | 244.66.239.159 | 30 |
| 14 | 244.66.239.160/27 | 244.66.239.160 | 244.66.239.161 | 244.66.239.190 | 244.66.239.191 | 30 |
| 15 | 244.66.239.192/27 | 244.66.239.192 | 244.66.239.193 | 244.66.239.222 | 244.66.239.223 | 30 |
| 16 | 244.66.239.224/27 | 244.66.239.224 | 244.66.239.225 | 244.66.239.254 | 244.66.239.255 | 30 |