3.37.201.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (3.37.201.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 3.37.201.127 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 | 3.37.201.0/25 |
| Network Address | 3.37.201.0 |
| Broadcast Address | 3.37.201.127 |
| 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 | 3.37.201.1 |
| Last Usable IP | 3.37.201.126 |
| Network (Hex) | 0x0325C900 |
| Broadcast (Hex) | 0x0325C97F |
| 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 3.37.201.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.37.201.0/26 | 3.37.201.0 | 3.37.201.1 | 3.37.201.62 | 3.37.201.63 | 62 |
| 2 | 3.37.201.64/26 | 3.37.201.64 | 3.37.201.65 | 3.37.201.126 | 3.37.201.127 | 62 |
Split 3.37.201.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.37.201.0/27 | 3.37.201.0 | 3.37.201.1 | 3.37.201.30 | 3.37.201.31 | 30 |
| 2 | 3.37.201.32/27 | 3.37.201.32 | 3.37.201.33 | 3.37.201.62 | 3.37.201.63 | 30 |
| 3 | 3.37.201.64/27 | 3.37.201.64 | 3.37.201.65 | 3.37.201.94 | 3.37.201.95 | 30 |
| 4 | 3.37.201.96/27 | 3.37.201.96 | 3.37.201.97 | 3.37.201.126 | 3.37.201.127 | 30 |
Split 3.37.201.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.37.201.0/28 | 3.37.201.0 | 3.37.201.1 | 3.37.201.14 | 3.37.201.15 | 14 |
| 2 | 3.37.201.16/28 | 3.37.201.16 | 3.37.201.17 | 3.37.201.30 | 3.37.201.31 | 14 |
| 3 | 3.37.201.32/28 | 3.37.201.32 | 3.37.201.33 | 3.37.201.46 | 3.37.201.47 | 14 |
| 4 | 3.37.201.48/28 | 3.37.201.48 | 3.37.201.49 | 3.37.201.62 | 3.37.201.63 | 14 |
| 5 | 3.37.201.64/28 | 3.37.201.64 | 3.37.201.65 | 3.37.201.78 | 3.37.201.79 | 14 |
| 6 | 3.37.201.80/28 | 3.37.201.80 | 3.37.201.81 | 3.37.201.94 | 3.37.201.95 | 14 |
| 7 | 3.37.201.96/28 | 3.37.201.96 | 3.37.201.97 | 3.37.201.110 | 3.37.201.111 | 14 |
| 8 | 3.37.201.112/28 | 3.37.201.112 | 3.37.201.113 | 3.37.201.126 | 3.37.201.127 | 14 |
Split 3.37.201.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.37.201.0/29 | 3.37.201.0 | 3.37.201.1 | 3.37.201.6 | 3.37.201.7 | 6 |
| 2 | 3.37.201.8/29 | 3.37.201.8 | 3.37.201.9 | 3.37.201.14 | 3.37.201.15 | 6 |
| 3 | 3.37.201.16/29 | 3.37.201.16 | 3.37.201.17 | 3.37.201.22 | 3.37.201.23 | 6 |
| 4 | 3.37.201.24/29 | 3.37.201.24 | 3.37.201.25 | 3.37.201.30 | 3.37.201.31 | 6 |
| 5 | 3.37.201.32/29 | 3.37.201.32 | 3.37.201.33 | 3.37.201.38 | 3.37.201.39 | 6 |
| 6 | 3.37.201.40/29 | 3.37.201.40 | 3.37.201.41 | 3.37.201.46 | 3.37.201.47 | 6 |
| 7 | 3.37.201.48/29 | 3.37.201.48 | 3.37.201.49 | 3.37.201.54 | 3.37.201.55 | 6 |
| 8 | 3.37.201.56/29 | 3.37.201.56 | 3.37.201.57 | 3.37.201.62 | 3.37.201.63 | 6 |
| 9 | 3.37.201.64/29 | 3.37.201.64 | 3.37.201.65 | 3.37.201.70 | 3.37.201.71 | 6 |
| 10 | 3.37.201.72/29 | 3.37.201.72 | 3.37.201.73 | 3.37.201.78 | 3.37.201.79 | 6 |
| 11 | 3.37.201.80/29 | 3.37.201.80 | 3.37.201.81 | 3.37.201.86 | 3.37.201.87 | 6 |
| 12 | 3.37.201.88/29 | 3.37.201.88 | 3.37.201.89 | 3.37.201.94 | 3.37.201.95 | 6 |
| 13 | 3.37.201.96/29 | 3.37.201.96 | 3.37.201.97 | 3.37.201.102 | 3.37.201.103 | 6 |
| 14 | 3.37.201.104/29 | 3.37.201.104 | 3.37.201.105 | 3.37.201.110 | 3.37.201.111 | 6 |
| 15 | 3.37.201.112/29 | 3.37.201.112 | 3.37.201.113 | 3.37.201.118 | 3.37.201.119 | 6 |
| 16 | 3.37.201.120/29 | 3.37.201.120 | 3.37.201.121 | 3.37.201.126 | 3.37.201.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.