205.251.254.0/25
PublicClass C — /25 prefix — 126 usable hosts
Network address — the base address of the block (205.251.254.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 205.251.254.127 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 | 205.251.254.0/25 |
| Network Address | 205.251.254.0 |
| Broadcast Address | 205.251.254.127 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class C |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 205.251.254.1 |
| Last Usable IP | 205.251.254.126 |
| Network (Hex) | 0xCDFBFE00 |
| Broadcast (Hex) | 0xCDFBFE7F |
| 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 205.251.254.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 205.251.254.0/26 | 205.251.254.0 | 205.251.254.1 | 205.251.254.62 | 205.251.254.63 | 62 |
| 2 | 205.251.254.64/26 | 205.251.254.64 | 205.251.254.65 | 205.251.254.126 | 205.251.254.127 | 62 |
Split 205.251.254.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 205.251.254.0/27 | 205.251.254.0 | 205.251.254.1 | 205.251.254.30 | 205.251.254.31 | 30 |
| 2 | 205.251.254.32/27 | 205.251.254.32 | 205.251.254.33 | 205.251.254.62 | 205.251.254.63 | 30 |
| 3 | 205.251.254.64/27 | 205.251.254.64 | 205.251.254.65 | 205.251.254.94 | 205.251.254.95 | 30 |
| 4 | 205.251.254.96/27 | 205.251.254.96 | 205.251.254.97 | 205.251.254.126 | 205.251.254.127 | 30 |
Split 205.251.254.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 205.251.254.0/28 | 205.251.254.0 | 205.251.254.1 | 205.251.254.14 | 205.251.254.15 | 14 |
| 2 | 205.251.254.16/28 | 205.251.254.16 | 205.251.254.17 | 205.251.254.30 | 205.251.254.31 | 14 |
| 3 | 205.251.254.32/28 | 205.251.254.32 | 205.251.254.33 | 205.251.254.46 | 205.251.254.47 | 14 |
| 4 | 205.251.254.48/28 | 205.251.254.48 | 205.251.254.49 | 205.251.254.62 | 205.251.254.63 | 14 |
| 5 | 205.251.254.64/28 | 205.251.254.64 | 205.251.254.65 | 205.251.254.78 | 205.251.254.79 | 14 |
| 6 | 205.251.254.80/28 | 205.251.254.80 | 205.251.254.81 | 205.251.254.94 | 205.251.254.95 | 14 |
| 7 | 205.251.254.96/28 | 205.251.254.96 | 205.251.254.97 | 205.251.254.110 | 205.251.254.111 | 14 |
| 8 | 205.251.254.112/28 | 205.251.254.112 | 205.251.254.113 | 205.251.254.126 | 205.251.254.127 | 14 |
Split 205.251.254.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 205.251.254.0/29 | 205.251.254.0 | 205.251.254.1 | 205.251.254.6 | 205.251.254.7 | 6 |
| 2 | 205.251.254.8/29 | 205.251.254.8 | 205.251.254.9 | 205.251.254.14 | 205.251.254.15 | 6 |
| 3 | 205.251.254.16/29 | 205.251.254.16 | 205.251.254.17 | 205.251.254.22 | 205.251.254.23 | 6 |
| 4 | 205.251.254.24/29 | 205.251.254.24 | 205.251.254.25 | 205.251.254.30 | 205.251.254.31 | 6 |
| 5 | 205.251.254.32/29 | 205.251.254.32 | 205.251.254.33 | 205.251.254.38 | 205.251.254.39 | 6 |
| 6 | 205.251.254.40/29 | 205.251.254.40 | 205.251.254.41 | 205.251.254.46 | 205.251.254.47 | 6 |
| 7 | 205.251.254.48/29 | 205.251.254.48 | 205.251.254.49 | 205.251.254.54 | 205.251.254.55 | 6 |
| 8 | 205.251.254.56/29 | 205.251.254.56 | 205.251.254.57 | 205.251.254.62 | 205.251.254.63 | 6 |
| 9 | 205.251.254.64/29 | 205.251.254.64 | 205.251.254.65 | 205.251.254.70 | 205.251.254.71 | 6 |
| 10 | 205.251.254.72/29 | 205.251.254.72 | 205.251.254.73 | 205.251.254.78 | 205.251.254.79 | 6 |
| 11 | 205.251.254.80/29 | 205.251.254.80 | 205.251.254.81 | 205.251.254.86 | 205.251.254.87 | 6 |
| 12 | 205.251.254.88/29 | 205.251.254.88 | 205.251.254.89 | 205.251.254.94 | 205.251.254.95 | 6 |
| 13 | 205.251.254.96/29 | 205.251.254.96 | 205.251.254.97 | 205.251.254.102 | 205.251.254.103 | 6 |
| 14 | 205.251.254.104/29 | 205.251.254.104 | 205.251.254.105 | 205.251.254.110 | 205.251.254.111 | 6 |
| 15 | 205.251.254.112/29 | 205.251.254.112 | 205.251.254.113 | 205.251.254.118 | 205.251.254.119 | 6 |
| 16 | 205.251.254.120/29 | 205.251.254.120 | 205.251.254.121 | 205.251.254.126 | 205.251.254.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.