15.159.135.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (15.159.135.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 15.159.135.127 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 | 15.159.135.0/25 |
| Network Address | 15.159.135.0 |
| Broadcast Address | 15.159.135.127 |
| 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 | 15.159.135.1 |
| Last Usable IP | 15.159.135.126 |
| Network (Hex) | 0x0F9F8700 |
| Broadcast (Hex) | 0x0F9F877F |
| 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 15.159.135.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 15.159.135.0/26 | 15.159.135.0 | 15.159.135.1 | 15.159.135.62 | 15.159.135.63 | 62 |
| 2 | 15.159.135.64/26 | 15.159.135.64 | 15.159.135.65 | 15.159.135.126 | 15.159.135.127 | 62 |
Split 15.159.135.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 15.159.135.0/27 | 15.159.135.0 | 15.159.135.1 | 15.159.135.30 | 15.159.135.31 | 30 |
| 2 | 15.159.135.32/27 | 15.159.135.32 | 15.159.135.33 | 15.159.135.62 | 15.159.135.63 | 30 |
| 3 | 15.159.135.64/27 | 15.159.135.64 | 15.159.135.65 | 15.159.135.94 | 15.159.135.95 | 30 |
| 4 | 15.159.135.96/27 | 15.159.135.96 | 15.159.135.97 | 15.159.135.126 | 15.159.135.127 | 30 |
Split 15.159.135.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 15.159.135.0/28 | 15.159.135.0 | 15.159.135.1 | 15.159.135.14 | 15.159.135.15 | 14 |
| 2 | 15.159.135.16/28 | 15.159.135.16 | 15.159.135.17 | 15.159.135.30 | 15.159.135.31 | 14 |
| 3 | 15.159.135.32/28 | 15.159.135.32 | 15.159.135.33 | 15.159.135.46 | 15.159.135.47 | 14 |
| 4 | 15.159.135.48/28 | 15.159.135.48 | 15.159.135.49 | 15.159.135.62 | 15.159.135.63 | 14 |
| 5 | 15.159.135.64/28 | 15.159.135.64 | 15.159.135.65 | 15.159.135.78 | 15.159.135.79 | 14 |
| 6 | 15.159.135.80/28 | 15.159.135.80 | 15.159.135.81 | 15.159.135.94 | 15.159.135.95 | 14 |
| 7 | 15.159.135.96/28 | 15.159.135.96 | 15.159.135.97 | 15.159.135.110 | 15.159.135.111 | 14 |
| 8 | 15.159.135.112/28 | 15.159.135.112 | 15.159.135.113 | 15.159.135.126 | 15.159.135.127 | 14 |
Split 15.159.135.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 15.159.135.0/29 | 15.159.135.0 | 15.159.135.1 | 15.159.135.6 | 15.159.135.7 | 6 |
| 2 | 15.159.135.8/29 | 15.159.135.8 | 15.159.135.9 | 15.159.135.14 | 15.159.135.15 | 6 |
| 3 | 15.159.135.16/29 | 15.159.135.16 | 15.159.135.17 | 15.159.135.22 | 15.159.135.23 | 6 |
| 4 | 15.159.135.24/29 | 15.159.135.24 | 15.159.135.25 | 15.159.135.30 | 15.159.135.31 | 6 |
| 5 | 15.159.135.32/29 | 15.159.135.32 | 15.159.135.33 | 15.159.135.38 | 15.159.135.39 | 6 |
| 6 | 15.159.135.40/29 | 15.159.135.40 | 15.159.135.41 | 15.159.135.46 | 15.159.135.47 | 6 |
| 7 | 15.159.135.48/29 | 15.159.135.48 | 15.159.135.49 | 15.159.135.54 | 15.159.135.55 | 6 |
| 8 | 15.159.135.56/29 | 15.159.135.56 | 15.159.135.57 | 15.159.135.62 | 15.159.135.63 | 6 |
| 9 | 15.159.135.64/29 | 15.159.135.64 | 15.159.135.65 | 15.159.135.70 | 15.159.135.71 | 6 |
| 10 | 15.159.135.72/29 | 15.159.135.72 | 15.159.135.73 | 15.159.135.78 | 15.159.135.79 | 6 |
| 11 | 15.159.135.80/29 | 15.159.135.80 | 15.159.135.81 | 15.159.135.86 | 15.159.135.87 | 6 |
| 12 | 15.159.135.88/29 | 15.159.135.88 | 15.159.135.89 | 15.159.135.94 | 15.159.135.95 | 6 |
| 13 | 15.159.135.96/29 | 15.159.135.96 | 15.159.135.97 | 15.159.135.102 | 15.159.135.103 | 6 |
| 14 | 15.159.135.104/29 | 15.159.135.104 | 15.159.135.105 | 15.159.135.110 | 15.159.135.111 | 6 |
| 15 | 15.159.135.112/29 | 15.159.135.112 | 15.159.135.113 | 15.159.135.118 | 15.159.135.119 | 6 |
| 16 | 15.159.135.120/29 | 15.159.135.120 | 15.159.135.121 | 15.159.135.126 | 15.159.135.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.