54.20.51.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (54.20.51.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 54.20.51.127 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 | 54.20.51.0/25 |
| Network Address | 54.20.51.0 |
| Broadcast Address | 54.20.51.127 |
| 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 | 54.20.51.1 |
| Last Usable IP | 54.20.51.126 |
| Network (Hex) | 0x36143300 |
| Broadcast (Hex) | 0x3614337F |
| 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 54.20.51.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 54.20.51.0/26 | 54.20.51.0 | 54.20.51.1 | 54.20.51.62 | 54.20.51.63 | 62 |
| 2 | 54.20.51.64/26 | 54.20.51.64 | 54.20.51.65 | 54.20.51.126 | 54.20.51.127 | 62 |
Split 54.20.51.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 54.20.51.0/27 | 54.20.51.0 | 54.20.51.1 | 54.20.51.30 | 54.20.51.31 | 30 |
| 2 | 54.20.51.32/27 | 54.20.51.32 | 54.20.51.33 | 54.20.51.62 | 54.20.51.63 | 30 |
| 3 | 54.20.51.64/27 | 54.20.51.64 | 54.20.51.65 | 54.20.51.94 | 54.20.51.95 | 30 |
| 4 | 54.20.51.96/27 | 54.20.51.96 | 54.20.51.97 | 54.20.51.126 | 54.20.51.127 | 30 |
Split 54.20.51.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 54.20.51.0/28 | 54.20.51.0 | 54.20.51.1 | 54.20.51.14 | 54.20.51.15 | 14 |
| 2 | 54.20.51.16/28 | 54.20.51.16 | 54.20.51.17 | 54.20.51.30 | 54.20.51.31 | 14 |
| 3 | 54.20.51.32/28 | 54.20.51.32 | 54.20.51.33 | 54.20.51.46 | 54.20.51.47 | 14 |
| 4 | 54.20.51.48/28 | 54.20.51.48 | 54.20.51.49 | 54.20.51.62 | 54.20.51.63 | 14 |
| 5 | 54.20.51.64/28 | 54.20.51.64 | 54.20.51.65 | 54.20.51.78 | 54.20.51.79 | 14 |
| 6 | 54.20.51.80/28 | 54.20.51.80 | 54.20.51.81 | 54.20.51.94 | 54.20.51.95 | 14 |
| 7 | 54.20.51.96/28 | 54.20.51.96 | 54.20.51.97 | 54.20.51.110 | 54.20.51.111 | 14 |
| 8 | 54.20.51.112/28 | 54.20.51.112 | 54.20.51.113 | 54.20.51.126 | 54.20.51.127 | 14 |
Split 54.20.51.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 54.20.51.0/29 | 54.20.51.0 | 54.20.51.1 | 54.20.51.6 | 54.20.51.7 | 6 |
| 2 | 54.20.51.8/29 | 54.20.51.8 | 54.20.51.9 | 54.20.51.14 | 54.20.51.15 | 6 |
| 3 | 54.20.51.16/29 | 54.20.51.16 | 54.20.51.17 | 54.20.51.22 | 54.20.51.23 | 6 |
| 4 | 54.20.51.24/29 | 54.20.51.24 | 54.20.51.25 | 54.20.51.30 | 54.20.51.31 | 6 |
| 5 | 54.20.51.32/29 | 54.20.51.32 | 54.20.51.33 | 54.20.51.38 | 54.20.51.39 | 6 |
| 6 | 54.20.51.40/29 | 54.20.51.40 | 54.20.51.41 | 54.20.51.46 | 54.20.51.47 | 6 |
| 7 | 54.20.51.48/29 | 54.20.51.48 | 54.20.51.49 | 54.20.51.54 | 54.20.51.55 | 6 |
| 8 | 54.20.51.56/29 | 54.20.51.56 | 54.20.51.57 | 54.20.51.62 | 54.20.51.63 | 6 |
| 9 | 54.20.51.64/29 | 54.20.51.64 | 54.20.51.65 | 54.20.51.70 | 54.20.51.71 | 6 |
| 10 | 54.20.51.72/29 | 54.20.51.72 | 54.20.51.73 | 54.20.51.78 | 54.20.51.79 | 6 |
| 11 | 54.20.51.80/29 | 54.20.51.80 | 54.20.51.81 | 54.20.51.86 | 54.20.51.87 | 6 |
| 12 | 54.20.51.88/29 | 54.20.51.88 | 54.20.51.89 | 54.20.51.94 | 54.20.51.95 | 6 |
| 13 | 54.20.51.96/29 | 54.20.51.96 | 54.20.51.97 | 54.20.51.102 | 54.20.51.103 | 6 |
| 14 | 54.20.51.104/29 | 54.20.51.104 | 54.20.51.105 | 54.20.51.110 | 54.20.51.111 | 6 |
| 15 | 54.20.51.112/29 | 54.20.51.112 | 54.20.51.113 | 54.20.51.118 | 54.20.51.119 | 6 |
| 16 | 54.20.51.120/29 | 54.20.51.120 | 54.20.51.121 | 54.20.51.126 | 54.20.51.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.