124.15.125.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (124.15.125.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 124.15.125.127 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 | 124.15.125.0/25 |
| Network Address | 124.15.125.0 |
| Broadcast Address | 124.15.125.127 |
| 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 | 124.15.125.1 |
| Last Usable IP | 124.15.125.126 |
| Network (Hex) | 0x7C0F7D00 |
| Broadcast (Hex) | 0x7C0F7D7F |
| 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 124.15.125.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 124.15.125.0/26 | 124.15.125.0 | 124.15.125.1 | 124.15.125.62 | 124.15.125.63 | 62 |
| 2 | 124.15.125.64/26 | 124.15.125.64 | 124.15.125.65 | 124.15.125.126 | 124.15.125.127 | 62 |
Split 124.15.125.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 124.15.125.0/27 | 124.15.125.0 | 124.15.125.1 | 124.15.125.30 | 124.15.125.31 | 30 |
| 2 | 124.15.125.32/27 | 124.15.125.32 | 124.15.125.33 | 124.15.125.62 | 124.15.125.63 | 30 |
| 3 | 124.15.125.64/27 | 124.15.125.64 | 124.15.125.65 | 124.15.125.94 | 124.15.125.95 | 30 |
| 4 | 124.15.125.96/27 | 124.15.125.96 | 124.15.125.97 | 124.15.125.126 | 124.15.125.127 | 30 |
Split 124.15.125.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 124.15.125.0/28 | 124.15.125.0 | 124.15.125.1 | 124.15.125.14 | 124.15.125.15 | 14 |
| 2 | 124.15.125.16/28 | 124.15.125.16 | 124.15.125.17 | 124.15.125.30 | 124.15.125.31 | 14 |
| 3 | 124.15.125.32/28 | 124.15.125.32 | 124.15.125.33 | 124.15.125.46 | 124.15.125.47 | 14 |
| 4 | 124.15.125.48/28 | 124.15.125.48 | 124.15.125.49 | 124.15.125.62 | 124.15.125.63 | 14 |
| 5 | 124.15.125.64/28 | 124.15.125.64 | 124.15.125.65 | 124.15.125.78 | 124.15.125.79 | 14 |
| 6 | 124.15.125.80/28 | 124.15.125.80 | 124.15.125.81 | 124.15.125.94 | 124.15.125.95 | 14 |
| 7 | 124.15.125.96/28 | 124.15.125.96 | 124.15.125.97 | 124.15.125.110 | 124.15.125.111 | 14 |
| 8 | 124.15.125.112/28 | 124.15.125.112 | 124.15.125.113 | 124.15.125.126 | 124.15.125.127 | 14 |
Split 124.15.125.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 124.15.125.0/29 | 124.15.125.0 | 124.15.125.1 | 124.15.125.6 | 124.15.125.7 | 6 |
| 2 | 124.15.125.8/29 | 124.15.125.8 | 124.15.125.9 | 124.15.125.14 | 124.15.125.15 | 6 |
| 3 | 124.15.125.16/29 | 124.15.125.16 | 124.15.125.17 | 124.15.125.22 | 124.15.125.23 | 6 |
| 4 | 124.15.125.24/29 | 124.15.125.24 | 124.15.125.25 | 124.15.125.30 | 124.15.125.31 | 6 |
| 5 | 124.15.125.32/29 | 124.15.125.32 | 124.15.125.33 | 124.15.125.38 | 124.15.125.39 | 6 |
| 6 | 124.15.125.40/29 | 124.15.125.40 | 124.15.125.41 | 124.15.125.46 | 124.15.125.47 | 6 |
| 7 | 124.15.125.48/29 | 124.15.125.48 | 124.15.125.49 | 124.15.125.54 | 124.15.125.55 | 6 |
| 8 | 124.15.125.56/29 | 124.15.125.56 | 124.15.125.57 | 124.15.125.62 | 124.15.125.63 | 6 |
| 9 | 124.15.125.64/29 | 124.15.125.64 | 124.15.125.65 | 124.15.125.70 | 124.15.125.71 | 6 |
| 10 | 124.15.125.72/29 | 124.15.125.72 | 124.15.125.73 | 124.15.125.78 | 124.15.125.79 | 6 |
| 11 | 124.15.125.80/29 | 124.15.125.80 | 124.15.125.81 | 124.15.125.86 | 124.15.125.87 | 6 |
| 12 | 124.15.125.88/29 | 124.15.125.88 | 124.15.125.89 | 124.15.125.94 | 124.15.125.95 | 6 |
| 13 | 124.15.125.96/29 | 124.15.125.96 | 124.15.125.97 | 124.15.125.102 | 124.15.125.103 | 6 |
| 14 | 124.15.125.104/29 | 124.15.125.104 | 124.15.125.105 | 124.15.125.110 | 124.15.125.111 | 6 |
| 15 | 124.15.125.112/29 | 124.15.125.112 | 124.15.125.113 | 124.15.125.118 | 124.15.125.119 | 6 |
| 16 | 124.15.125.120/29 | 124.15.125.120 | 124.15.125.121 | 124.15.125.126 | 124.15.125.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.