125.71.72.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (125.71.72.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 125.71.72.127 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 | 125.71.72.0/25 |
| Network Address | 125.71.72.0 |
| Broadcast Address | 125.71.72.127 |
| 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 | 125.71.72.1 |
| Last Usable IP | 125.71.72.126 |
| Network (Hex) | 0x7D474800 |
| Broadcast (Hex) | 0x7D47487F |
| 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 125.71.72.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 125.71.72.0/26 | 125.71.72.0 | 125.71.72.1 | 125.71.72.62 | 125.71.72.63 | 62 |
| 2 | 125.71.72.64/26 | 125.71.72.64 | 125.71.72.65 | 125.71.72.126 | 125.71.72.127 | 62 |
Split 125.71.72.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 125.71.72.0/27 | 125.71.72.0 | 125.71.72.1 | 125.71.72.30 | 125.71.72.31 | 30 |
| 2 | 125.71.72.32/27 | 125.71.72.32 | 125.71.72.33 | 125.71.72.62 | 125.71.72.63 | 30 |
| 3 | 125.71.72.64/27 | 125.71.72.64 | 125.71.72.65 | 125.71.72.94 | 125.71.72.95 | 30 |
| 4 | 125.71.72.96/27 | 125.71.72.96 | 125.71.72.97 | 125.71.72.126 | 125.71.72.127 | 30 |
Split 125.71.72.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 125.71.72.0/28 | 125.71.72.0 | 125.71.72.1 | 125.71.72.14 | 125.71.72.15 | 14 |
| 2 | 125.71.72.16/28 | 125.71.72.16 | 125.71.72.17 | 125.71.72.30 | 125.71.72.31 | 14 |
| 3 | 125.71.72.32/28 | 125.71.72.32 | 125.71.72.33 | 125.71.72.46 | 125.71.72.47 | 14 |
| 4 | 125.71.72.48/28 | 125.71.72.48 | 125.71.72.49 | 125.71.72.62 | 125.71.72.63 | 14 |
| 5 | 125.71.72.64/28 | 125.71.72.64 | 125.71.72.65 | 125.71.72.78 | 125.71.72.79 | 14 |
| 6 | 125.71.72.80/28 | 125.71.72.80 | 125.71.72.81 | 125.71.72.94 | 125.71.72.95 | 14 |
| 7 | 125.71.72.96/28 | 125.71.72.96 | 125.71.72.97 | 125.71.72.110 | 125.71.72.111 | 14 |
| 8 | 125.71.72.112/28 | 125.71.72.112 | 125.71.72.113 | 125.71.72.126 | 125.71.72.127 | 14 |
Split 125.71.72.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 125.71.72.0/29 | 125.71.72.0 | 125.71.72.1 | 125.71.72.6 | 125.71.72.7 | 6 |
| 2 | 125.71.72.8/29 | 125.71.72.8 | 125.71.72.9 | 125.71.72.14 | 125.71.72.15 | 6 |
| 3 | 125.71.72.16/29 | 125.71.72.16 | 125.71.72.17 | 125.71.72.22 | 125.71.72.23 | 6 |
| 4 | 125.71.72.24/29 | 125.71.72.24 | 125.71.72.25 | 125.71.72.30 | 125.71.72.31 | 6 |
| 5 | 125.71.72.32/29 | 125.71.72.32 | 125.71.72.33 | 125.71.72.38 | 125.71.72.39 | 6 |
| 6 | 125.71.72.40/29 | 125.71.72.40 | 125.71.72.41 | 125.71.72.46 | 125.71.72.47 | 6 |
| 7 | 125.71.72.48/29 | 125.71.72.48 | 125.71.72.49 | 125.71.72.54 | 125.71.72.55 | 6 |
| 8 | 125.71.72.56/29 | 125.71.72.56 | 125.71.72.57 | 125.71.72.62 | 125.71.72.63 | 6 |
| 9 | 125.71.72.64/29 | 125.71.72.64 | 125.71.72.65 | 125.71.72.70 | 125.71.72.71 | 6 |
| 10 | 125.71.72.72/29 | 125.71.72.72 | 125.71.72.73 | 125.71.72.78 | 125.71.72.79 | 6 |
| 11 | 125.71.72.80/29 | 125.71.72.80 | 125.71.72.81 | 125.71.72.86 | 125.71.72.87 | 6 |
| 12 | 125.71.72.88/29 | 125.71.72.88 | 125.71.72.89 | 125.71.72.94 | 125.71.72.95 | 6 |
| 13 | 125.71.72.96/29 | 125.71.72.96 | 125.71.72.97 | 125.71.72.102 | 125.71.72.103 | 6 |
| 14 | 125.71.72.104/29 | 125.71.72.104 | 125.71.72.105 | 125.71.72.110 | 125.71.72.111 | 6 |
| 15 | 125.71.72.112/29 | 125.71.72.112 | 125.71.72.113 | 125.71.72.118 | 125.71.72.119 | 6 |
| 16 | 125.71.72.120/29 | 125.71.72.120 | 125.71.72.121 | 125.71.72.126 | 125.71.72.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.