161.193.198.0/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (161.193.198.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 161.193.198.127 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 | 161.193.198.0/25 |
| Network Address | 161.193.198.0 |
| Broadcast Address | 161.193.198.127 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class B |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 161.193.198.1 |
| Last Usable IP | 161.193.198.126 |
| Network (Hex) | 0xA1C1C600 |
| Broadcast (Hex) | 0xA1C1C67F |
| 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 161.193.198.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 161.193.198.0/26 | 161.193.198.0 | 161.193.198.1 | 161.193.198.62 | 161.193.198.63 | 62 |
| 2 | 161.193.198.64/26 | 161.193.198.64 | 161.193.198.65 | 161.193.198.126 | 161.193.198.127 | 62 |
Split 161.193.198.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 161.193.198.0/27 | 161.193.198.0 | 161.193.198.1 | 161.193.198.30 | 161.193.198.31 | 30 |
| 2 | 161.193.198.32/27 | 161.193.198.32 | 161.193.198.33 | 161.193.198.62 | 161.193.198.63 | 30 |
| 3 | 161.193.198.64/27 | 161.193.198.64 | 161.193.198.65 | 161.193.198.94 | 161.193.198.95 | 30 |
| 4 | 161.193.198.96/27 | 161.193.198.96 | 161.193.198.97 | 161.193.198.126 | 161.193.198.127 | 30 |
Split 161.193.198.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 161.193.198.0/28 | 161.193.198.0 | 161.193.198.1 | 161.193.198.14 | 161.193.198.15 | 14 |
| 2 | 161.193.198.16/28 | 161.193.198.16 | 161.193.198.17 | 161.193.198.30 | 161.193.198.31 | 14 |
| 3 | 161.193.198.32/28 | 161.193.198.32 | 161.193.198.33 | 161.193.198.46 | 161.193.198.47 | 14 |
| 4 | 161.193.198.48/28 | 161.193.198.48 | 161.193.198.49 | 161.193.198.62 | 161.193.198.63 | 14 |
| 5 | 161.193.198.64/28 | 161.193.198.64 | 161.193.198.65 | 161.193.198.78 | 161.193.198.79 | 14 |
| 6 | 161.193.198.80/28 | 161.193.198.80 | 161.193.198.81 | 161.193.198.94 | 161.193.198.95 | 14 |
| 7 | 161.193.198.96/28 | 161.193.198.96 | 161.193.198.97 | 161.193.198.110 | 161.193.198.111 | 14 |
| 8 | 161.193.198.112/28 | 161.193.198.112 | 161.193.198.113 | 161.193.198.126 | 161.193.198.127 | 14 |
Split 161.193.198.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 161.193.198.0/29 | 161.193.198.0 | 161.193.198.1 | 161.193.198.6 | 161.193.198.7 | 6 |
| 2 | 161.193.198.8/29 | 161.193.198.8 | 161.193.198.9 | 161.193.198.14 | 161.193.198.15 | 6 |
| 3 | 161.193.198.16/29 | 161.193.198.16 | 161.193.198.17 | 161.193.198.22 | 161.193.198.23 | 6 |
| 4 | 161.193.198.24/29 | 161.193.198.24 | 161.193.198.25 | 161.193.198.30 | 161.193.198.31 | 6 |
| 5 | 161.193.198.32/29 | 161.193.198.32 | 161.193.198.33 | 161.193.198.38 | 161.193.198.39 | 6 |
| 6 | 161.193.198.40/29 | 161.193.198.40 | 161.193.198.41 | 161.193.198.46 | 161.193.198.47 | 6 |
| 7 | 161.193.198.48/29 | 161.193.198.48 | 161.193.198.49 | 161.193.198.54 | 161.193.198.55 | 6 |
| 8 | 161.193.198.56/29 | 161.193.198.56 | 161.193.198.57 | 161.193.198.62 | 161.193.198.63 | 6 |
| 9 | 161.193.198.64/29 | 161.193.198.64 | 161.193.198.65 | 161.193.198.70 | 161.193.198.71 | 6 |
| 10 | 161.193.198.72/29 | 161.193.198.72 | 161.193.198.73 | 161.193.198.78 | 161.193.198.79 | 6 |
| 11 | 161.193.198.80/29 | 161.193.198.80 | 161.193.198.81 | 161.193.198.86 | 161.193.198.87 | 6 |
| 12 | 161.193.198.88/29 | 161.193.198.88 | 161.193.198.89 | 161.193.198.94 | 161.193.198.95 | 6 |
| 13 | 161.193.198.96/29 | 161.193.198.96 | 161.193.198.97 | 161.193.198.102 | 161.193.198.103 | 6 |
| 14 | 161.193.198.104/29 | 161.193.198.104 | 161.193.198.105 | 161.193.198.110 | 161.193.198.111 | 6 |
| 15 | 161.193.198.112/29 | 161.193.198.112 | 161.193.198.113 | 161.193.198.118 | 161.193.198.119 | 6 |
| 16 | 161.193.198.120/29 | 161.193.198.120 | 161.193.198.121 | 161.193.198.126 | 161.193.198.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.