8.231.65.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (8.231.65.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 8.231.65.127 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 | 8.231.65.0/25 |
| Network Address | 8.231.65.0 |
| Broadcast Address | 8.231.65.127 |
| 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 | 8.231.65.1 |
| Last Usable IP | 8.231.65.126 |
| Network (Hex) | 0x08E74100 |
| Broadcast (Hex) | 0x08E7417F |
| 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 8.231.65.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 8.231.65.0/26 | 8.231.65.0 | 8.231.65.1 | 8.231.65.62 | 8.231.65.63 | 62 |
| 2 | 8.231.65.64/26 | 8.231.65.64 | 8.231.65.65 | 8.231.65.126 | 8.231.65.127 | 62 |
Split 8.231.65.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 8.231.65.0/27 | 8.231.65.0 | 8.231.65.1 | 8.231.65.30 | 8.231.65.31 | 30 |
| 2 | 8.231.65.32/27 | 8.231.65.32 | 8.231.65.33 | 8.231.65.62 | 8.231.65.63 | 30 |
| 3 | 8.231.65.64/27 | 8.231.65.64 | 8.231.65.65 | 8.231.65.94 | 8.231.65.95 | 30 |
| 4 | 8.231.65.96/27 | 8.231.65.96 | 8.231.65.97 | 8.231.65.126 | 8.231.65.127 | 30 |
Split 8.231.65.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 8.231.65.0/28 | 8.231.65.0 | 8.231.65.1 | 8.231.65.14 | 8.231.65.15 | 14 |
| 2 | 8.231.65.16/28 | 8.231.65.16 | 8.231.65.17 | 8.231.65.30 | 8.231.65.31 | 14 |
| 3 | 8.231.65.32/28 | 8.231.65.32 | 8.231.65.33 | 8.231.65.46 | 8.231.65.47 | 14 |
| 4 | 8.231.65.48/28 | 8.231.65.48 | 8.231.65.49 | 8.231.65.62 | 8.231.65.63 | 14 |
| 5 | 8.231.65.64/28 | 8.231.65.64 | 8.231.65.65 | 8.231.65.78 | 8.231.65.79 | 14 |
| 6 | 8.231.65.80/28 | 8.231.65.80 | 8.231.65.81 | 8.231.65.94 | 8.231.65.95 | 14 |
| 7 | 8.231.65.96/28 | 8.231.65.96 | 8.231.65.97 | 8.231.65.110 | 8.231.65.111 | 14 |
| 8 | 8.231.65.112/28 | 8.231.65.112 | 8.231.65.113 | 8.231.65.126 | 8.231.65.127 | 14 |
Split 8.231.65.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 8.231.65.0/29 | 8.231.65.0 | 8.231.65.1 | 8.231.65.6 | 8.231.65.7 | 6 |
| 2 | 8.231.65.8/29 | 8.231.65.8 | 8.231.65.9 | 8.231.65.14 | 8.231.65.15 | 6 |
| 3 | 8.231.65.16/29 | 8.231.65.16 | 8.231.65.17 | 8.231.65.22 | 8.231.65.23 | 6 |
| 4 | 8.231.65.24/29 | 8.231.65.24 | 8.231.65.25 | 8.231.65.30 | 8.231.65.31 | 6 |
| 5 | 8.231.65.32/29 | 8.231.65.32 | 8.231.65.33 | 8.231.65.38 | 8.231.65.39 | 6 |
| 6 | 8.231.65.40/29 | 8.231.65.40 | 8.231.65.41 | 8.231.65.46 | 8.231.65.47 | 6 |
| 7 | 8.231.65.48/29 | 8.231.65.48 | 8.231.65.49 | 8.231.65.54 | 8.231.65.55 | 6 |
| 8 | 8.231.65.56/29 | 8.231.65.56 | 8.231.65.57 | 8.231.65.62 | 8.231.65.63 | 6 |
| 9 | 8.231.65.64/29 | 8.231.65.64 | 8.231.65.65 | 8.231.65.70 | 8.231.65.71 | 6 |
| 10 | 8.231.65.72/29 | 8.231.65.72 | 8.231.65.73 | 8.231.65.78 | 8.231.65.79 | 6 |
| 11 | 8.231.65.80/29 | 8.231.65.80 | 8.231.65.81 | 8.231.65.86 | 8.231.65.87 | 6 |
| 12 | 8.231.65.88/29 | 8.231.65.88 | 8.231.65.89 | 8.231.65.94 | 8.231.65.95 | 6 |
| 13 | 8.231.65.96/29 | 8.231.65.96 | 8.231.65.97 | 8.231.65.102 | 8.231.65.103 | 6 |
| 14 | 8.231.65.104/29 | 8.231.65.104 | 8.231.65.105 | 8.231.65.110 | 8.231.65.111 | 6 |
| 15 | 8.231.65.112/29 | 8.231.65.112 | 8.231.65.113 | 8.231.65.118 | 8.231.65.119 | 6 |
| 16 | 8.231.65.120/29 | 8.231.65.120 | 8.231.65.121 | 8.231.65.126 | 8.231.65.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.