205.251.207.0/25
PublicClass C — /25 prefix — 126 usable hosts
Network address — the base address of the block (205.251.207.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 205.251.207.127 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 | 205.251.207.0/25 |
| Network Address | 205.251.207.0 |
| Broadcast Address | 205.251.207.127 |
| 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 | 205.251.207.1 |
| Last Usable IP | 205.251.207.126 |
| Network (Hex) | 0xCDFBCF00 |
| Broadcast (Hex) | 0xCDFBCF7F |
| 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 205.251.207.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 205.251.207.0/26 | 205.251.207.0 | 205.251.207.1 | 205.251.207.62 | 205.251.207.63 | 62 |
| 2 | 205.251.207.64/26 | 205.251.207.64 | 205.251.207.65 | 205.251.207.126 | 205.251.207.127 | 62 |
Split 205.251.207.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 205.251.207.0/27 | 205.251.207.0 | 205.251.207.1 | 205.251.207.30 | 205.251.207.31 | 30 |
| 2 | 205.251.207.32/27 | 205.251.207.32 | 205.251.207.33 | 205.251.207.62 | 205.251.207.63 | 30 |
| 3 | 205.251.207.64/27 | 205.251.207.64 | 205.251.207.65 | 205.251.207.94 | 205.251.207.95 | 30 |
| 4 | 205.251.207.96/27 | 205.251.207.96 | 205.251.207.97 | 205.251.207.126 | 205.251.207.127 | 30 |
Split 205.251.207.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 205.251.207.0/28 | 205.251.207.0 | 205.251.207.1 | 205.251.207.14 | 205.251.207.15 | 14 |
| 2 | 205.251.207.16/28 | 205.251.207.16 | 205.251.207.17 | 205.251.207.30 | 205.251.207.31 | 14 |
| 3 | 205.251.207.32/28 | 205.251.207.32 | 205.251.207.33 | 205.251.207.46 | 205.251.207.47 | 14 |
| 4 | 205.251.207.48/28 | 205.251.207.48 | 205.251.207.49 | 205.251.207.62 | 205.251.207.63 | 14 |
| 5 | 205.251.207.64/28 | 205.251.207.64 | 205.251.207.65 | 205.251.207.78 | 205.251.207.79 | 14 |
| 6 | 205.251.207.80/28 | 205.251.207.80 | 205.251.207.81 | 205.251.207.94 | 205.251.207.95 | 14 |
| 7 | 205.251.207.96/28 | 205.251.207.96 | 205.251.207.97 | 205.251.207.110 | 205.251.207.111 | 14 |
| 8 | 205.251.207.112/28 | 205.251.207.112 | 205.251.207.113 | 205.251.207.126 | 205.251.207.127 | 14 |
Split 205.251.207.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 205.251.207.0/29 | 205.251.207.0 | 205.251.207.1 | 205.251.207.6 | 205.251.207.7 | 6 |
| 2 | 205.251.207.8/29 | 205.251.207.8 | 205.251.207.9 | 205.251.207.14 | 205.251.207.15 | 6 |
| 3 | 205.251.207.16/29 | 205.251.207.16 | 205.251.207.17 | 205.251.207.22 | 205.251.207.23 | 6 |
| 4 | 205.251.207.24/29 | 205.251.207.24 | 205.251.207.25 | 205.251.207.30 | 205.251.207.31 | 6 |
| 5 | 205.251.207.32/29 | 205.251.207.32 | 205.251.207.33 | 205.251.207.38 | 205.251.207.39 | 6 |
| 6 | 205.251.207.40/29 | 205.251.207.40 | 205.251.207.41 | 205.251.207.46 | 205.251.207.47 | 6 |
| 7 | 205.251.207.48/29 | 205.251.207.48 | 205.251.207.49 | 205.251.207.54 | 205.251.207.55 | 6 |
| 8 | 205.251.207.56/29 | 205.251.207.56 | 205.251.207.57 | 205.251.207.62 | 205.251.207.63 | 6 |
| 9 | 205.251.207.64/29 | 205.251.207.64 | 205.251.207.65 | 205.251.207.70 | 205.251.207.71 | 6 |
| 10 | 205.251.207.72/29 | 205.251.207.72 | 205.251.207.73 | 205.251.207.78 | 205.251.207.79 | 6 |
| 11 | 205.251.207.80/29 | 205.251.207.80 | 205.251.207.81 | 205.251.207.86 | 205.251.207.87 | 6 |
| 12 | 205.251.207.88/29 | 205.251.207.88 | 205.251.207.89 | 205.251.207.94 | 205.251.207.95 | 6 |
| 13 | 205.251.207.96/29 | 205.251.207.96 | 205.251.207.97 | 205.251.207.102 | 205.251.207.103 | 6 |
| 14 | 205.251.207.104/29 | 205.251.207.104 | 205.251.207.105 | 205.251.207.110 | 205.251.207.111 | 6 |
| 15 | 205.251.207.112/29 | 205.251.207.112 | 205.251.207.113 | 205.251.207.118 | 205.251.207.119 | 6 |
| 16 | 205.251.207.120/29 | 205.251.207.120 | 205.251.207.121 | 205.251.207.126 | 205.251.207.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.