161.193.149.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (161.193.149.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 161.193.149.255 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 | 161.193.149.128/25 |
| Network Address | 161.193.149.128 |
| Broadcast Address | 161.193.149.255 |
| 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 | 161.193.149.129 |
| Last Usable IP | 161.193.149.254 |
| Network (Hex) | 0xA1C19580 |
| Broadcast (Hex) | 0xA1C195FF |
| 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 161.193.149.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 161.193.149.128/26 | 161.193.149.128 | 161.193.149.129 | 161.193.149.190 | 161.193.149.191 | 62 |
| 2 | 161.193.149.192/26 | 161.193.149.192 | 161.193.149.193 | 161.193.149.254 | 161.193.149.255 | 62 |
Split 161.193.149.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 161.193.149.128/27 | 161.193.149.128 | 161.193.149.129 | 161.193.149.158 | 161.193.149.159 | 30 |
| 2 | 161.193.149.160/27 | 161.193.149.160 | 161.193.149.161 | 161.193.149.190 | 161.193.149.191 | 30 |
| 3 | 161.193.149.192/27 | 161.193.149.192 | 161.193.149.193 | 161.193.149.222 | 161.193.149.223 | 30 |
| 4 | 161.193.149.224/27 | 161.193.149.224 | 161.193.149.225 | 161.193.149.254 | 161.193.149.255 | 30 |
Split 161.193.149.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 161.193.149.128/28 | 161.193.149.128 | 161.193.149.129 | 161.193.149.142 | 161.193.149.143 | 14 |
| 2 | 161.193.149.144/28 | 161.193.149.144 | 161.193.149.145 | 161.193.149.158 | 161.193.149.159 | 14 |
| 3 | 161.193.149.160/28 | 161.193.149.160 | 161.193.149.161 | 161.193.149.174 | 161.193.149.175 | 14 |
| 4 | 161.193.149.176/28 | 161.193.149.176 | 161.193.149.177 | 161.193.149.190 | 161.193.149.191 | 14 |
| 5 | 161.193.149.192/28 | 161.193.149.192 | 161.193.149.193 | 161.193.149.206 | 161.193.149.207 | 14 |
| 6 | 161.193.149.208/28 | 161.193.149.208 | 161.193.149.209 | 161.193.149.222 | 161.193.149.223 | 14 |
| 7 | 161.193.149.224/28 | 161.193.149.224 | 161.193.149.225 | 161.193.149.238 | 161.193.149.239 | 14 |
| 8 | 161.193.149.240/28 | 161.193.149.240 | 161.193.149.241 | 161.193.149.254 | 161.193.149.255 | 14 |
Split 161.193.149.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 161.193.149.128/29 | 161.193.149.128 | 161.193.149.129 | 161.193.149.134 | 161.193.149.135 | 6 |
| 2 | 161.193.149.136/29 | 161.193.149.136 | 161.193.149.137 | 161.193.149.142 | 161.193.149.143 | 6 |
| 3 | 161.193.149.144/29 | 161.193.149.144 | 161.193.149.145 | 161.193.149.150 | 161.193.149.151 | 6 |
| 4 | 161.193.149.152/29 | 161.193.149.152 | 161.193.149.153 | 161.193.149.158 | 161.193.149.159 | 6 |
| 5 | 161.193.149.160/29 | 161.193.149.160 | 161.193.149.161 | 161.193.149.166 | 161.193.149.167 | 6 |
| 6 | 161.193.149.168/29 | 161.193.149.168 | 161.193.149.169 | 161.193.149.174 | 161.193.149.175 | 6 |
| 7 | 161.193.149.176/29 | 161.193.149.176 | 161.193.149.177 | 161.193.149.182 | 161.193.149.183 | 6 |
| 8 | 161.193.149.184/29 | 161.193.149.184 | 161.193.149.185 | 161.193.149.190 | 161.193.149.191 | 6 |
| 9 | 161.193.149.192/29 | 161.193.149.192 | 161.193.149.193 | 161.193.149.198 | 161.193.149.199 | 6 |
| 10 | 161.193.149.200/29 | 161.193.149.200 | 161.193.149.201 | 161.193.149.206 | 161.193.149.207 | 6 |
| 11 | 161.193.149.208/29 | 161.193.149.208 | 161.193.149.209 | 161.193.149.214 | 161.193.149.215 | 6 |
| 12 | 161.193.149.216/29 | 161.193.149.216 | 161.193.149.217 | 161.193.149.222 | 161.193.149.223 | 6 |
| 13 | 161.193.149.224/29 | 161.193.149.224 | 161.193.149.225 | 161.193.149.230 | 161.193.149.231 | 6 |
| 14 | 161.193.149.232/29 | 161.193.149.232 | 161.193.149.233 | 161.193.149.238 | 161.193.149.239 | 6 |
| 15 | 161.193.149.240/29 | 161.193.149.240 | 161.193.149.241 | 161.193.149.246 | 161.193.149.247 | 6 |
| 16 | 161.193.149.248/29 | 161.193.149.248 | 161.193.149.249 | 161.193.149.254 | 161.193.149.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.