100.40.0.0/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (100.40.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 100.40.0.63 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 100.40.0.0/26 |
| Network Address | 100.40.0.0 |
| Broadcast Address | 100.40.0.63 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class A |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 100.40.0.1 |
| Last Usable IP | 100.40.0.62 |
| Network (Hex) | 0x64280000 |
| Broadcast (Hex) | 0x6428003F |
| Address Type | Public / Globally Routable |
Binary Representation
The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.
Split into Equal Subnets
Split 100.40.0.0/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 100.40.0.0/27 | 100.40.0.0 | 100.40.0.1 | 100.40.0.30 | 100.40.0.31 | 30 |
| 2 | 100.40.0.32/27 | 100.40.0.32 | 100.40.0.33 | 100.40.0.62 | 100.40.0.63 | 30 |
Split 100.40.0.0/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 100.40.0.0/28 | 100.40.0.0 | 100.40.0.1 | 100.40.0.14 | 100.40.0.15 | 14 |
| 2 | 100.40.0.16/28 | 100.40.0.16 | 100.40.0.17 | 100.40.0.30 | 100.40.0.31 | 14 |
| 3 | 100.40.0.32/28 | 100.40.0.32 | 100.40.0.33 | 100.40.0.46 | 100.40.0.47 | 14 |
| 4 | 100.40.0.48/28 | 100.40.0.48 | 100.40.0.49 | 100.40.0.62 | 100.40.0.63 | 14 |
Split 100.40.0.0/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 100.40.0.0/29 | 100.40.0.0 | 100.40.0.1 | 100.40.0.6 | 100.40.0.7 | 6 |
| 2 | 100.40.0.8/29 | 100.40.0.8 | 100.40.0.9 | 100.40.0.14 | 100.40.0.15 | 6 |
| 3 | 100.40.0.16/29 | 100.40.0.16 | 100.40.0.17 | 100.40.0.22 | 100.40.0.23 | 6 |
| 4 | 100.40.0.24/29 | 100.40.0.24 | 100.40.0.25 | 100.40.0.30 | 100.40.0.31 | 6 |
| 5 | 100.40.0.32/29 | 100.40.0.32 | 100.40.0.33 | 100.40.0.38 | 100.40.0.39 | 6 |
| 6 | 100.40.0.40/29 | 100.40.0.40 | 100.40.0.41 | 100.40.0.46 | 100.40.0.47 | 6 |
| 7 | 100.40.0.48/29 | 100.40.0.48 | 100.40.0.49 | 100.40.0.54 | 100.40.0.55 | 6 |
| 8 | 100.40.0.56/29 | 100.40.0.56 | 100.40.0.57 | 100.40.0.62 | 100.40.0.63 | 6 |
Split 100.40.0.0/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 100.40.0.0/30 | 100.40.0.0 | 100.40.0.1 | 100.40.0.2 | 100.40.0.3 | 2 |
| 2 | 100.40.0.4/30 | 100.40.0.4 | 100.40.0.5 | 100.40.0.6 | 100.40.0.7 | 2 |
| 3 | 100.40.0.8/30 | 100.40.0.8 | 100.40.0.9 | 100.40.0.10 | 100.40.0.11 | 2 |
| 4 | 100.40.0.12/30 | 100.40.0.12 | 100.40.0.13 | 100.40.0.14 | 100.40.0.15 | 2 |
| 5 | 100.40.0.16/30 | 100.40.0.16 | 100.40.0.17 | 100.40.0.18 | 100.40.0.19 | 2 |
| 6 | 100.40.0.20/30 | 100.40.0.20 | 100.40.0.21 | 100.40.0.22 | 100.40.0.23 | 2 |
| 7 | 100.40.0.24/30 | 100.40.0.24 | 100.40.0.25 | 100.40.0.26 | 100.40.0.27 | 2 |
| 8 | 100.40.0.28/30 | 100.40.0.28 | 100.40.0.29 | 100.40.0.30 | 100.40.0.31 | 2 |
| 9 | 100.40.0.32/30 | 100.40.0.32 | 100.40.0.33 | 100.40.0.34 | 100.40.0.35 | 2 |
| 10 | 100.40.0.36/30 | 100.40.0.36 | 100.40.0.37 | 100.40.0.38 | 100.40.0.39 | 2 |
| 11 | 100.40.0.40/30 | 100.40.0.40 | 100.40.0.41 | 100.40.0.42 | 100.40.0.43 | 2 |
| 12 | 100.40.0.44/30 | 100.40.0.44 | 100.40.0.45 | 100.40.0.46 | 100.40.0.47 | 2 |
| 13 | 100.40.0.48/30 | 100.40.0.48 | 100.40.0.49 | 100.40.0.50 | 100.40.0.51 | 2 |
| 14 | 100.40.0.52/30 | 100.40.0.52 | 100.40.0.53 | 100.40.0.54 | 100.40.0.55 | 2 |
| 15 | 100.40.0.56/30 | 100.40.0.56 | 100.40.0.57 | 100.40.0.58 | 100.40.0.59 | 2 |
| 16 | 100.40.0.60/30 | 100.40.0.60 | 100.40.0.61 | 100.40.0.62 | 100.40.0.63 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.