51.146.242.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (51.146.242.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 51.146.242.127 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 | 51.146.242.0/25 |
| Network Address | 51.146.242.0 |
| Broadcast Address | 51.146.242.127 |
| 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 | 51.146.242.1 |
| Last Usable IP | 51.146.242.126 |
| Network (Hex) | 0x3392F200 |
| Broadcast (Hex) | 0x3392F27F |
| 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 51.146.242.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 51.146.242.0/26 | 51.146.242.0 | 51.146.242.1 | 51.146.242.62 | 51.146.242.63 | 62 |
| 2 | 51.146.242.64/26 | 51.146.242.64 | 51.146.242.65 | 51.146.242.126 | 51.146.242.127 | 62 |
Split 51.146.242.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 51.146.242.0/27 | 51.146.242.0 | 51.146.242.1 | 51.146.242.30 | 51.146.242.31 | 30 |
| 2 | 51.146.242.32/27 | 51.146.242.32 | 51.146.242.33 | 51.146.242.62 | 51.146.242.63 | 30 |
| 3 | 51.146.242.64/27 | 51.146.242.64 | 51.146.242.65 | 51.146.242.94 | 51.146.242.95 | 30 |
| 4 | 51.146.242.96/27 | 51.146.242.96 | 51.146.242.97 | 51.146.242.126 | 51.146.242.127 | 30 |
Split 51.146.242.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 51.146.242.0/28 | 51.146.242.0 | 51.146.242.1 | 51.146.242.14 | 51.146.242.15 | 14 |
| 2 | 51.146.242.16/28 | 51.146.242.16 | 51.146.242.17 | 51.146.242.30 | 51.146.242.31 | 14 |
| 3 | 51.146.242.32/28 | 51.146.242.32 | 51.146.242.33 | 51.146.242.46 | 51.146.242.47 | 14 |
| 4 | 51.146.242.48/28 | 51.146.242.48 | 51.146.242.49 | 51.146.242.62 | 51.146.242.63 | 14 |
| 5 | 51.146.242.64/28 | 51.146.242.64 | 51.146.242.65 | 51.146.242.78 | 51.146.242.79 | 14 |
| 6 | 51.146.242.80/28 | 51.146.242.80 | 51.146.242.81 | 51.146.242.94 | 51.146.242.95 | 14 |
| 7 | 51.146.242.96/28 | 51.146.242.96 | 51.146.242.97 | 51.146.242.110 | 51.146.242.111 | 14 |
| 8 | 51.146.242.112/28 | 51.146.242.112 | 51.146.242.113 | 51.146.242.126 | 51.146.242.127 | 14 |
Split 51.146.242.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 51.146.242.0/29 | 51.146.242.0 | 51.146.242.1 | 51.146.242.6 | 51.146.242.7 | 6 |
| 2 | 51.146.242.8/29 | 51.146.242.8 | 51.146.242.9 | 51.146.242.14 | 51.146.242.15 | 6 |
| 3 | 51.146.242.16/29 | 51.146.242.16 | 51.146.242.17 | 51.146.242.22 | 51.146.242.23 | 6 |
| 4 | 51.146.242.24/29 | 51.146.242.24 | 51.146.242.25 | 51.146.242.30 | 51.146.242.31 | 6 |
| 5 | 51.146.242.32/29 | 51.146.242.32 | 51.146.242.33 | 51.146.242.38 | 51.146.242.39 | 6 |
| 6 | 51.146.242.40/29 | 51.146.242.40 | 51.146.242.41 | 51.146.242.46 | 51.146.242.47 | 6 |
| 7 | 51.146.242.48/29 | 51.146.242.48 | 51.146.242.49 | 51.146.242.54 | 51.146.242.55 | 6 |
| 8 | 51.146.242.56/29 | 51.146.242.56 | 51.146.242.57 | 51.146.242.62 | 51.146.242.63 | 6 |
| 9 | 51.146.242.64/29 | 51.146.242.64 | 51.146.242.65 | 51.146.242.70 | 51.146.242.71 | 6 |
| 10 | 51.146.242.72/29 | 51.146.242.72 | 51.146.242.73 | 51.146.242.78 | 51.146.242.79 | 6 |
| 11 | 51.146.242.80/29 | 51.146.242.80 | 51.146.242.81 | 51.146.242.86 | 51.146.242.87 | 6 |
| 12 | 51.146.242.88/29 | 51.146.242.88 | 51.146.242.89 | 51.146.242.94 | 51.146.242.95 | 6 |
| 13 | 51.146.242.96/29 | 51.146.242.96 | 51.146.242.97 | 51.146.242.102 | 51.146.242.103 | 6 |
| 14 | 51.146.242.104/29 | 51.146.242.104 | 51.146.242.105 | 51.146.242.110 | 51.146.242.111 | 6 |
| 15 | 51.146.242.112/29 | 51.146.242.112 | 51.146.242.113 | 51.146.242.118 | 51.146.242.119 | 6 |
| 16 | 51.146.242.120/29 | 51.146.242.120 | 51.146.242.121 | 51.146.242.126 | 51.146.242.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.