28.9.1.0/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (28.9.1.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 28.9.1.63 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 | 28.9.1.0/26 |
| Network Address | 28.9.1.0 |
| Broadcast Address | 28.9.1.63 |
| 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 | 28.9.1.1 |
| Last Usable IP | 28.9.1.62 |
| Network (Hex) | 0x1C090100 |
| Broadcast (Hex) | 0x1C09013F |
| 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 28.9.1.0/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.9.1.0/27 | 28.9.1.0 | 28.9.1.1 | 28.9.1.30 | 28.9.1.31 | 30 |
| 2 | 28.9.1.32/27 | 28.9.1.32 | 28.9.1.33 | 28.9.1.62 | 28.9.1.63 | 30 |
Split 28.9.1.0/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.9.1.0/28 | 28.9.1.0 | 28.9.1.1 | 28.9.1.14 | 28.9.1.15 | 14 |
| 2 | 28.9.1.16/28 | 28.9.1.16 | 28.9.1.17 | 28.9.1.30 | 28.9.1.31 | 14 |
| 3 | 28.9.1.32/28 | 28.9.1.32 | 28.9.1.33 | 28.9.1.46 | 28.9.1.47 | 14 |
| 4 | 28.9.1.48/28 | 28.9.1.48 | 28.9.1.49 | 28.9.1.62 | 28.9.1.63 | 14 |
Split 28.9.1.0/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.9.1.0/29 | 28.9.1.0 | 28.9.1.1 | 28.9.1.6 | 28.9.1.7 | 6 |
| 2 | 28.9.1.8/29 | 28.9.1.8 | 28.9.1.9 | 28.9.1.14 | 28.9.1.15 | 6 |
| 3 | 28.9.1.16/29 | 28.9.1.16 | 28.9.1.17 | 28.9.1.22 | 28.9.1.23 | 6 |
| 4 | 28.9.1.24/29 | 28.9.1.24 | 28.9.1.25 | 28.9.1.30 | 28.9.1.31 | 6 |
| 5 | 28.9.1.32/29 | 28.9.1.32 | 28.9.1.33 | 28.9.1.38 | 28.9.1.39 | 6 |
| 6 | 28.9.1.40/29 | 28.9.1.40 | 28.9.1.41 | 28.9.1.46 | 28.9.1.47 | 6 |
| 7 | 28.9.1.48/29 | 28.9.1.48 | 28.9.1.49 | 28.9.1.54 | 28.9.1.55 | 6 |
| 8 | 28.9.1.56/29 | 28.9.1.56 | 28.9.1.57 | 28.9.1.62 | 28.9.1.63 | 6 |
Split 28.9.1.0/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.9.1.0/30 | 28.9.1.0 | 28.9.1.1 | 28.9.1.2 | 28.9.1.3 | 2 |
| 2 | 28.9.1.4/30 | 28.9.1.4 | 28.9.1.5 | 28.9.1.6 | 28.9.1.7 | 2 |
| 3 | 28.9.1.8/30 | 28.9.1.8 | 28.9.1.9 | 28.9.1.10 | 28.9.1.11 | 2 |
| 4 | 28.9.1.12/30 | 28.9.1.12 | 28.9.1.13 | 28.9.1.14 | 28.9.1.15 | 2 |
| 5 | 28.9.1.16/30 | 28.9.1.16 | 28.9.1.17 | 28.9.1.18 | 28.9.1.19 | 2 |
| 6 | 28.9.1.20/30 | 28.9.1.20 | 28.9.1.21 | 28.9.1.22 | 28.9.1.23 | 2 |
| 7 | 28.9.1.24/30 | 28.9.1.24 | 28.9.1.25 | 28.9.1.26 | 28.9.1.27 | 2 |
| 8 | 28.9.1.28/30 | 28.9.1.28 | 28.9.1.29 | 28.9.1.30 | 28.9.1.31 | 2 |
| 9 | 28.9.1.32/30 | 28.9.1.32 | 28.9.1.33 | 28.9.1.34 | 28.9.1.35 | 2 |
| 10 | 28.9.1.36/30 | 28.9.1.36 | 28.9.1.37 | 28.9.1.38 | 28.9.1.39 | 2 |
| 11 | 28.9.1.40/30 | 28.9.1.40 | 28.9.1.41 | 28.9.1.42 | 28.9.1.43 | 2 |
| 12 | 28.9.1.44/30 | 28.9.1.44 | 28.9.1.45 | 28.9.1.46 | 28.9.1.47 | 2 |
| 13 | 28.9.1.48/30 | 28.9.1.48 | 28.9.1.49 | 28.9.1.50 | 28.9.1.51 | 2 |
| 14 | 28.9.1.52/30 | 28.9.1.52 | 28.9.1.53 | 28.9.1.54 | 28.9.1.55 | 2 |
| 15 | 28.9.1.56/30 | 28.9.1.56 | 28.9.1.57 | 28.9.1.58 | 28.9.1.59 | 2 |
| 16 | 28.9.1.60/30 | 28.9.1.60 | 28.9.1.61 | 28.9.1.62 | 28.9.1.63 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.