75.3.90.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (75.3.90.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 75.3.90.127 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 | 75.3.90.0/25 |
| Network Address | 75.3.90.0 |
| Broadcast Address | 75.3.90.127 |
| 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 | 75.3.90.1 |
| Last Usable IP | 75.3.90.126 |
| Network (Hex) | 0x4B035A00 |
| Broadcast (Hex) | 0x4B035A7F |
| 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 75.3.90.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 75.3.90.0/26 | 75.3.90.0 | 75.3.90.1 | 75.3.90.62 | 75.3.90.63 | 62 |
| 2 | 75.3.90.64/26 | 75.3.90.64 | 75.3.90.65 | 75.3.90.126 | 75.3.90.127 | 62 |
Split 75.3.90.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 75.3.90.0/27 | 75.3.90.0 | 75.3.90.1 | 75.3.90.30 | 75.3.90.31 | 30 |
| 2 | 75.3.90.32/27 | 75.3.90.32 | 75.3.90.33 | 75.3.90.62 | 75.3.90.63 | 30 |
| 3 | 75.3.90.64/27 | 75.3.90.64 | 75.3.90.65 | 75.3.90.94 | 75.3.90.95 | 30 |
| 4 | 75.3.90.96/27 | 75.3.90.96 | 75.3.90.97 | 75.3.90.126 | 75.3.90.127 | 30 |
Split 75.3.90.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 75.3.90.0/28 | 75.3.90.0 | 75.3.90.1 | 75.3.90.14 | 75.3.90.15 | 14 |
| 2 | 75.3.90.16/28 | 75.3.90.16 | 75.3.90.17 | 75.3.90.30 | 75.3.90.31 | 14 |
| 3 | 75.3.90.32/28 | 75.3.90.32 | 75.3.90.33 | 75.3.90.46 | 75.3.90.47 | 14 |
| 4 | 75.3.90.48/28 | 75.3.90.48 | 75.3.90.49 | 75.3.90.62 | 75.3.90.63 | 14 |
| 5 | 75.3.90.64/28 | 75.3.90.64 | 75.3.90.65 | 75.3.90.78 | 75.3.90.79 | 14 |
| 6 | 75.3.90.80/28 | 75.3.90.80 | 75.3.90.81 | 75.3.90.94 | 75.3.90.95 | 14 |
| 7 | 75.3.90.96/28 | 75.3.90.96 | 75.3.90.97 | 75.3.90.110 | 75.3.90.111 | 14 |
| 8 | 75.3.90.112/28 | 75.3.90.112 | 75.3.90.113 | 75.3.90.126 | 75.3.90.127 | 14 |
Split 75.3.90.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 75.3.90.0/29 | 75.3.90.0 | 75.3.90.1 | 75.3.90.6 | 75.3.90.7 | 6 |
| 2 | 75.3.90.8/29 | 75.3.90.8 | 75.3.90.9 | 75.3.90.14 | 75.3.90.15 | 6 |
| 3 | 75.3.90.16/29 | 75.3.90.16 | 75.3.90.17 | 75.3.90.22 | 75.3.90.23 | 6 |
| 4 | 75.3.90.24/29 | 75.3.90.24 | 75.3.90.25 | 75.3.90.30 | 75.3.90.31 | 6 |
| 5 | 75.3.90.32/29 | 75.3.90.32 | 75.3.90.33 | 75.3.90.38 | 75.3.90.39 | 6 |
| 6 | 75.3.90.40/29 | 75.3.90.40 | 75.3.90.41 | 75.3.90.46 | 75.3.90.47 | 6 |
| 7 | 75.3.90.48/29 | 75.3.90.48 | 75.3.90.49 | 75.3.90.54 | 75.3.90.55 | 6 |
| 8 | 75.3.90.56/29 | 75.3.90.56 | 75.3.90.57 | 75.3.90.62 | 75.3.90.63 | 6 |
| 9 | 75.3.90.64/29 | 75.3.90.64 | 75.3.90.65 | 75.3.90.70 | 75.3.90.71 | 6 |
| 10 | 75.3.90.72/29 | 75.3.90.72 | 75.3.90.73 | 75.3.90.78 | 75.3.90.79 | 6 |
| 11 | 75.3.90.80/29 | 75.3.90.80 | 75.3.90.81 | 75.3.90.86 | 75.3.90.87 | 6 |
| 12 | 75.3.90.88/29 | 75.3.90.88 | 75.3.90.89 | 75.3.90.94 | 75.3.90.95 | 6 |
| 13 | 75.3.90.96/29 | 75.3.90.96 | 75.3.90.97 | 75.3.90.102 | 75.3.90.103 | 6 |
| 14 | 75.3.90.104/29 | 75.3.90.104 | 75.3.90.105 | 75.3.90.110 | 75.3.90.111 | 6 |
| 15 | 75.3.90.112/29 | 75.3.90.112 | 75.3.90.113 | 75.3.90.118 | 75.3.90.119 | 6 |
| 16 | 75.3.90.120/29 | 75.3.90.120 | 75.3.90.121 | 75.3.90.126 | 75.3.90.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.