28.9.17.0/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (28.9.17.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 28.9.17.63 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 | 28.9.17.0/26 |
| Network Address | 28.9.17.0 |
| Broadcast Address | 28.9.17.63 |
| 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 | 28.9.17.1 |
| Last Usable IP | 28.9.17.62 |
| Network (Hex) | 0x1C091100 |
| Broadcast (Hex) | 0x1C09113F |
| 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 28.9.17.0/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.9.17.0/27 | 28.9.17.0 | 28.9.17.1 | 28.9.17.30 | 28.9.17.31 | 30 |
| 2 | 28.9.17.32/27 | 28.9.17.32 | 28.9.17.33 | 28.9.17.62 | 28.9.17.63 | 30 |
Split 28.9.17.0/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.9.17.0/28 | 28.9.17.0 | 28.9.17.1 | 28.9.17.14 | 28.9.17.15 | 14 |
| 2 | 28.9.17.16/28 | 28.9.17.16 | 28.9.17.17 | 28.9.17.30 | 28.9.17.31 | 14 |
| 3 | 28.9.17.32/28 | 28.9.17.32 | 28.9.17.33 | 28.9.17.46 | 28.9.17.47 | 14 |
| 4 | 28.9.17.48/28 | 28.9.17.48 | 28.9.17.49 | 28.9.17.62 | 28.9.17.63 | 14 |
Split 28.9.17.0/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.9.17.0/29 | 28.9.17.0 | 28.9.17.1 | 28.9.17.6 | 28.9.17.7 | 6 |
| 2 | 28.9.17.8/29 | 28.9.17.8 | 28.9.17.9 | 28.9.17.14 | 28.9.17.15 | 6 |
| 3 | 28.9.17.16/29 | 28.9.17.16 | 28.9.17.17 | 28.9.17.22 | 28.9.17.23 | 6 |
| 4 | 28.9.17.24/29 | 28.9.17.24 | 28.9.17.25 | 28.9.17.30 | 28.9.17.31 | 6 |
| 5 | 28.9.17.32/29 | 28.9.17.32 | 28.9.17.33 | 28.9.17.38 | 28.9.17.39 | 6 |
| 6 | 28.9.17.40/29 | 28.9.17.40 | 28.9.17.41 | 28.9.17.46 | 28.9.17.47 | 6 |
| 7 | 28.9.17.48/29 | 28.9.17.48 | 28.9.17.49 | 28.9.17.54 | 28.9.17.55 | 6 |
| 8 | 28.9.17.56/29 | 28.9.17.56 | 28.9.17.57 | 28.9.17.62 | 28.9.17.63 | 6 |
Split 28.9.17.0/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.9.17.0/30 | 28.9.17.0 | 28.9.17.1 | 28.9.17.2 | 28.9.17.3 | 2 |
| 2 | 28.9.17.4/30 | 28.9.17.4 | 28.9.17.5 | 28.9.17.6 | 28.9.17.7 | 2 |
| 3 | 28.9.17.8/30 | 28.9.17.8 | 28.9.17.9 | 28.9.17.10 | 28.9.17.11 | 2 |
| 4 | 28.9.17.12/30 | 28.9.17.12 | 28.9.17.13 | 28.9.17.14 | 28.9.17.15 | 2 |
| 5 | 28.9.17.16/30 | 28.9.17.16 | 28.9.17.17 | 28.9.17.18 | 28.9.17.19 | 2 |
| 6 | 28.9.17.20/30 | 28.9.17.20 | 28.9.17.21 | 28.9.17.22 | 28.9.17.23 | 2 |
| 7 | 28.9.17.24/30 | 28.9.17.24 | 28.9.17.25 | 28.9.17.26 | 28.9.17.27 | 2 |
| 8 | 28.9.17.28/30 | 28.9.17.28 | 28.9.17.29 | 28.9.17.30 | 28.9.17.31 | 2 |
| 9 | 28.9.17.32/30 | 28.9.17.32 | 28.9.17.33 | 28.9.17.34 | 28.9.17.35 | 2 |
| 10 | 28.9.17.36/30 | 28.9.17.36 | 28.9.17.37 | 28.9.17.38 | 28.9.17.39 | 2 |
| 11 | 28.9.17.40/30 | 28.9.17.40 | 28.9.17.41 | 28.9.17.42 | 28.9.17.43 | 2 |
| 12 | 28.9.17.44/30 | 28.9.17.44 | 28.9.17.45 | 28.9.17.46 | 28.9.17.47 | 2 |
| 13 | 28.9.17.48/30 | 28.9.17.48 | 28.9.17.49 | 28.9.17.50 | 28.9.17.51 | 2 |
| 14 | 28.9.17.52/30 | 28.9.17.52 | 28.9.17.53 | 28.9.17.54 | 28.9.17.55 | 2 |
| 15 | 28.9.17.56/30 | 28.9.17.56 | 28.9.17.57 | 28.9.17.58 | 28.9.17.59 | 2 |
| 16 | 28.9.17.60/30 | 28.9.17.60 | 28.9.17.61 | 28.9.17.62 | 28.9.17.63 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.