40.81.22.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (40.81.22.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 40.81.22.127 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 126 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 40.81.22.0/25 |
| Network Address | 40.81.22.0 |
| Broadcast Address | 40.81.22.127 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class A |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 40.81.22.1 |
| Last Usable IP | 40.81.22.126 |
| Network (Hex) | 0x28511600 |
| Broadcast (Hex) | 0x2851167F |
| Address Type | Public / Globally Routable |
Binary Representation
The first 25 bits (1s in the mask) identify the network. The remaining 7 bits identify hosts within the network.
Split into Equal Subnets
Split 40.81.22.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 40.81.22.0/26 | 40.81.22.0 | 40.81.22.1 | 40.81.22.62 | 40.81.22.63 | 62 |
| 2 | 40.81.22.64/26 | 40.81.22.64 | 40.81.22.65 | 40.81.22.126 | 40.81.22.127 | 62 |
Split 40.81.22.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 40.81.22.0/27 | 40.81.22.0 | 40.81.22.1 | 40.81.22.30 | 40.81.22.31 | 30 |
| 2 | 40.81.22.32/27 | 40.81.22.32 | 40.81.22.33 | 40.81.22.62 | 40.81.22.63 | 30 |
| 3 | 40.81.22.64/27 | 40.81.22.64 | 40.81.22.65 | 40.81.22.94 | 40.81.22.95 | 30 |
| 4 | 40.81.22.96/27 | 40.81.22.96 | 40.81.22.97 | 40.81.22.126 | 40.81.22.127 | 30 |
Split 40.81.22.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 40.81.22.0/28 | 40.81.22.0 | 40.81.22.1 | 40.81.22.14 | 40.81.22.15 | 14 |
| 2 | 40.81.22.16/28 | 40.81.22.16 | 40.81.22.17 | 40.81.22.30 | 40.81.22.31 | 14 |
| 3 | 40.81.22.32/28 | 40.81.22.32 | 40.81.22.33 | 40.81.22.46 | 40.81.22.47 | 14 |
| 4 | 40.81.22.48/28 | 40.81.22.48 | 40.81.22.49 | 40.81.22.62 | 40.81.22.63 | 14 |
| 5 | 40.81.22.64/28 | 40.81.22.64 | 40.81.22.65 | 40.81.22.78 | 40.81.22.79 | 14 |
| 6 | 40.81.22.80/28 | 40.81.22.80 | 40.81.22.81 | 40.81.22.94 | 40.81.22.95 | 14 |
| 7 | 40.81.22.96/28 | 40.81.22.96 | 40.81.22.97 | 40.81.22.110 | 40.81.22.111 | 14 |
| 8 | 40.81.22.112/28 | 40.81.22.112 | 40.81.22.113 | 40.81.22.126 | 40.81.22.127 | 14 |
Split 40.81.22.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 40.81.22.0/29 | 40.81.22.0 | 40.81.22.1 | 40.81.22.6 | 40.81.22.7 | 6 |
| 2 | 40.81.22.8/29 | 40.81.22.8 | 40.81.22.9 | 40.81.22.14 | 40.81.22.15 | 6 |
| 3 | 40.81.22.16/29 | 40.81.22.16 | 40.81.22.17 | 40.81.22.22 | 40.81.22.23 | 6 |
| 4 | 40.81.22.24/29 | 40.81.22.24 | 40.81.22.25 | 40.81.22.30 | 40.81.22.31 | 6 |
| 5 | 40.81.22.32/29 | 40.81.22.32 | 40.81.22.33 | 40.81.22.38 | 40.81.22.39 | 6 |
| 6 | 40.81.22.40/29 | 40.81.22.40 | 40.81.22.41 | 40.81.22.46 | 40.81.22.47 | 6 |
| 7 | 40.81.22.48/29 | 40.81.22.48 | 40.81.22.49 | 40.81.22.54 | 40.81.22.55 | 6 |
| 8 | 40.81.22.56/29 | 40.81.22.56 | 40.81.22.57 | 40.81.22.62 | 40.81.22.63 | 6 |
| 9 | 40.81.22.64/29 | 40.81.22.64 | 40.81.22.65 | 40.81.22.70 | 40.81.22.71 | 6 |
| 10 | 40.81.22.72/29 | 40.81.22.72 | 40.81.22.73 | 40.81.22.78 | 40.81.22.79 | 6 |
| 11 | 40.81.22.80/29 | 40.81.22.80 | 40.81.22.81 | 40.81.22.86 | 40.81.22.87 | 6 |
| 12 | 40.81.22.88/29 | 40.81.22.88 | 40.81.22.89 | 40.81.22.94 | 40.81.22.95 | 6 |
| 13 | 40.81.22.96/29 | 40.81.22.96 | 40.81.22.97 | 40.81.22.102 | 40.81.22.103 | 6 |
| 14 | 40.81.22.104/29 | 40.81.22.104 | 40.81.22.105 | 40.81.22.110 | 40.81.22.111 | 6 |
| 15 | 40.81.22.112/29 | 40.81.22.112 | 40.81.22.113 | 40.81.22.118 | 40.81.22.119 | 6 |
| 16 | 40.81.22.120/29 | 40.81.22.120 | 40.81.22.121 | 40.81.22.126 | 40.81.22.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.