28.212.116.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (28.212.116.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 28.212.116.127 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 | 28.212.116.0/25 |
| Network Address | 28.212.116.0 |
| Broadcast Address | 28.212.116.127 |
| 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 | 28.212.116.1 |
| Last Usable IP | 28.212.116.126 |
| Network (Hex) | 0x1CD47400 |
| Broadcast (Hex) | 0x1CD4747F |
| 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 28.212.116.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.212.116.0/26 | 28.212.116.0 | 28.212.116.1 | 28.212.116.62 | 28.212.116.63 | 62 |
| 2 | 28.212.116.64/26 | 28.212.116.64 | 28.212.116.65 | 28.212.116.126 | 28.212.116.127 | 62 |
Split 28.212.116.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.212.116.0/27 | 28.212.116.0 | 28.212.116.1 | 28.212.116.30 | 28.212.116.31 | 30 |
| 2 | 28.212.116.32/27 | 28.212.116.32 | 28.212.116.33 | 28.212.116.62 | 28.212.116.63 | 30 |
| 3 | 28.212.116.64/27 | 28.212.116.64 | 28.212.116.65 | 28.212.116.94 | 28.212.116.95 | 30 |
| 4 | 28.212.116.96/27 | 28.212.116.96 | 28.212.116.97 | 28.212.116.126 | 28.212.116.127 | 30 |
Split 28.212.116.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.212.116.0/28 | 28.212.116.0 | 28.212.116.1 | 28.212.116.14 | 28.212.116.15 | 14 |
| 2 | 28.212.116.16/28 | 28.212.116.16 | 28.212.116.17 | 28.212.116.30 | 28.212.116.31 | 14 |
| 3 | 28.212.116.32/28 | 28.212.116.32 | 28.212.116.33 | 28.212.116.46 | 28.212.116.47 | 14 |
| 4 | 28.212.116.48/28 | 28.212.116.48 | 28.212.116.49 | 28.212.116.62 | 28.212.116.63 | 14 |
| 5 | 28.212.116.64/28 | 28.212.116.64 | 28.212.116.65 | 28.212.116.78 | 28.212.116.79 | 14 |
| 6 | 28.212.116.80/28 | 28.212.116.80 | 28.212.116.81 | 28.212.116.94 | 28.212.116.95 | 14 |
| 7 | 28.212.116.96/28 | 28.212.116.96 | 28.212.116.97 | 28.212.116.110 | 28.212.116.111 | 14 |
| 8 | 28.212.116.112/28 | 28.212.116.112 | 28.212.116.113 | 28.212.116.126 | 28.212.116.127 | 14 |
Split 28.212.116.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 28.212.116.0/29 | 28.212.116.0 | 28.212.116.1 | 28.212.116.6 | 28.212.116.7 | 6 |
| 2 | 28.212.116.8/29 | 28.212.116.8 | 28.212.116.9 | 28.212.116.14 | 28.212.116.15 | 6 |
| 3 | 28.212.116.16/29 | 28.212.116.16 | 28.212.116.17 | 28.212.116.22 | 28.212.116.23 | 6 |
| 4 | 28.212.116.24/29 | 28.212.116.24 | 28.212.116.25 | 28.212.116.30 | 28.212.116.31 | 6 |
| 5 | 28.212.116.32/29 | 28.212.116.32 | 28.212.116.33 | 28.212.116.38 | 28.212.116.39 | 6 |
| 6 | 28.212.116.40/29 | 28.212.116.40 | 28.212.116.41 | 28.212.116.46 | 28.212.116.47 | 6 |
| 7 | 28.212.116.48/29 | 28.212.116.48 | 28.212.116.49 | 28.212.116.54 | 28.212.116.55 | 6 |
| 8 | 28.212.116.56/29 | 28.212.116.56 | 28.212.116.57 | 28.212.116.62 | 28.212.116.63 | 6 |
| 9 | 28.212.116.64/29 | 28.212.116.64 | 28.212.116.65 | 28.212.116.70 | 28.212.116.71 | 6 |
| 10 | 28.212.116.72/29 | 28.212.116.72 | 28.212.116.73 | 28.212.116.78 | 28.212.116.79 | 6 |
| 11 | 28.212.116.80/29 | 28.212.116.80 | 28.212.116.81 | 28.212.116.86 | 28.212.116.87 | 6 |
| 12 | 28.212.116.88/29 | 28.212.116.88 | 28.212.116.89 | 28.212.116.94 | 28.212.116.95 | 6 |
| 13 | 28.212.116.96/29 | 28.212.116.96 | 28.212.116.97 | 28.212.116.102 | 28.212.116.103 | 6 |
| 14 | 28.212.116.104/29 | 28.212.116.104 | 28.212.116.105 | 28.212.116.110 | 28.212.116.111 | 6 |
| 15 | 28.212.116.112/29 | 28.212.116.112 | 28.212.116.113 | 28.212.116.118 | 28.212.116.119 | 6 |
| 16 | 28.212.116.120/29 | 28.212.116.120 | 28.212.116.121 | 28.212.116.126 | 28.212.116.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.