143.201.0.128/25
PublicClass B — /25 prefix — 126 usable hosts
Network address — the base address of the block (143.201.0.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 143.201.0.255 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 | 143.201.0.128/25 |
| Network Address | 143.201.0.128 |
| Broadcast Address | 143.201.0.255 |
| 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 | 143.201.0.129 |
| Last Usable IP | 143.201.0.254 |
| Network (Hex) | 0x8FC90080 |
| Broadcast (Hex) | 0x8FC900FF |
| 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 143.201.0.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 143.201.0.128/26 | 143.201.0.128 | 143.201.0.129 | 143.201.0.190 | 143.201.0.191 | 62 |
| 2 | 143.201.0.192/26 | 143.201.0.192 | 143.201.0.193 | 143.201.0.254 | 143.201.0.255 | 62 |
Split 143.201.0.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 143.201.0.128/27 | 143.201.0.128 | 143.201.0.129 | 143.201.0.158 | 143.201.0.159 | 30 |
| 2 | 143.201.0.160/27 | 143.201.0.160 | 143.201.0.161 | 143.201.0.190 | 143.201.0.191 | 30 |
| 3 | 143.201.0.192/27 | 143.201.0.192 | 143.201.0.193 | 143.201.0.222 | 143.201.0.223 | 30 |
| 4 | 143.201.0.224/27 | 143.201.0.224 | 143.201.0.225 | 143.201.0.254 | 143.201.0.255 | 30 |
Split 143.201.0.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 143.201.0.128/28 | 143.201.0.128 | 143.201.0.129 | 143.201.0.142 | 143.201.0.143 | 14 |
| 2 | 143.201.0.144/28 | 143.201.0.144 | 143.201.0.145 | 143.201.0.158 | 143.201.0.159 | 14 |
| 3 | 143.201.0.160/28 | 143.201.0.160 | 143.201.0.161 | 143.201.0.174 | 143.201.0.175 | 14 |
| 4 | 143.201.0.176/28 | 143.201.0.176 | 143.201.0.177 | 143.201.0.190 | 143.201.0.191 | 14 |
| 5 | 143.201.0.192/28 | 143.201.0.192 | 143.201.0.193 | 143.201.0.206 | 143.201.0.207 | 14 |
| 6 | 143.201.0.208/28 | 143.201.0.208 | 143.201.0.209 | 143.201.0.222 | 143.201.0.223 | 14 |
| 7 | 143.201.0.224/28 | 143.201.0.224 | 143.201.0.225 | 143.201.0.238 | 143.201.0.239 | 14 |
| 8 | 143.201.0.240/28 | 143.201.0.240 | 143.201.0.241 | 143.201.0.254 | 143.201.0.255 | 14 |
Split 143.201.0.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 143.201.0.128/29 | 143.201.0.128 | 143.201.0.129 | 143.201.0.134 | 143.201.0.135 | 6 |
| 2 | 143.201.0.136/29 | 143.201.0.136 | 143.201.0.137 | 143.201.0.142 | 143.201.0.143 | 6 |
| 3 | 143.201.0.144/29 | 143.201.0.144 | 143.201.0.145 | 143.201.0.150 | 143.201.0.151 | 6 |
| 4 | 143.201.0.152/29 | 143.201.0.152 | 143.201.0.153 | 143.201.0.158 | 143.201.0.159 | 6 |
| 5 | 143.201.0.160/29 | 143.201.0.160 | 143.201.0.161 | 143.201.0.166 | 143.201.0.167 | 6 |
| 6 | 143.201.0.168/29 | 143.201.0.168 | 143.201.0.169 | 143.201.0.174 | 143.201.0.175 | 6 |
| 7 | 143.201.0.176/29 | 143.201.0.176 | 143.201.0.177 | 143.201.0.182 | 143.201.0.183 | 6 |
| 8 | 143.201.0.184/29 | 143.201.0.184 | 143.201.0.185 | 143.201.0.190 | 143.201.0.191 | 6 |
| 9 | 143.201.0.192/29 | 143.201.0.192 | 143.201.0.193 | 143.201.0.198 | 143.201.0.199 | 6 |
| 10 | 143.201.0.200/29 | 143.201.0.200 | 143.201.0.201 | 143.201.0.206 | 143.201.0.207 | 6 |
| 11 | 143.201.0.208/29 | 143.201.0.208 | 143.201.0.209 | 143.201.0.214 | 143.201.0.215 | 6 |
| 12 | 143.201.0.216/29 | 143.201.0.216 | 143.201.0.217 | 143.201.0.222 | 143.201.0.223 | 6 |
| 13 | 143.201.0.224/29 | 143.201.0.224 | 143.201.0.225 | 143.201.0.230 | 143.201.0.231 | 6 |
| 14 | 143.201.0.232/29 | 143.201.0.232 | 143.201.0.233 | 143.201.0.238 | 143.201.0.239 | 6 |
| 15 | 143.201.0.240/29 | 143.201.0.240 | 143.201.0.241 | 143.201.0.246 | 143.201.0.247 | 6 |
| 16 | 143.201.0.248/29 | 143.201.0.248 | 143.201.0.249 | 143.201.0.254 | 143.201.0.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.