39.159.121.128/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (39.159.121.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 39.159.121.255 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 | 39.159.121.128/25 |
| Network Address | 39.159.121.128 |
| Broadcast Address | 39.159.121.255 |
| 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 | 39.159.121.129 |
| Last Usable IP | 39.159.121.254 |
| Network (Hex) | 0x279F7980 |
| Broadcast (Hex) | 0x279F79FF |
| 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 39.159.121.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 39.159.121.128/26 | 39.159.121.128 | 39.159.121.129 | 39.159.121.190 | 39.159.121.191 | 62 |
| 2 | 39.159.121.192/26 | 39.159.121.192 | 39.159.121.193 | 39.159.121.254 | 39.159.121.255 | 62 |
Split 39.159.121.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 39.159.121.128/27 | 39.159.121.128 | 39.159.121.129 | 39.159.121.158 | 39.159.121.159 | 30 |
| 2 | 39.159.121.160/27 | 39.159.121.160 | 39.159.121.161 | 39.159.121.190 | 39.159.121.191 | 30 |
| 3 | 39.159.121.192/27 | 39.159.121.192 | 39.159.121.193 | 39.159.121.222 | 39.159.121.223 | 30 |
| 4 | 39.159.121.224/27 | 39.159.121.224 | 39.159.121.225 | 39.159.121.254 | 39.159.121.255 | 30 |
Split 39.159.121.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 39.159.121.128/28 | 39.159.121.128 | 39.159.121.129 | 39.159.121.142 | 39.159.121.143 | 14 |
| 2 | 39.159.121.144/28 | 39.159.121.144 | 39.159.121.145 | 39.159.121.158 | 39.159.121.159 | 14 |
| 3 | 39.159.121.160/28 | 39.159.121.160 | 39.159.121.161 | 39.159.121.174 | 39.159.121.175 | 14 |
| 4 | 39.159.121.176/28 | 39.159.121.176 | 39.159.121.177 | 39.159.121.190 | 39.159.121.191 | 14 |
| 5 | 39.159.121.192/28 | 39.159.121.192 | 39.159.121.193 | 39.159.121.206 | 39.159.121.207 | 14 |
| 6 | 39.159.121.208/28 | 39.159.121.208 | 39.159.121.209 | 39.159.121.222 | 39.159.121.223 | 14 |
| 7 | 39.159.121.224/28 | 39.159.121.224 | 39.159.121.225 | 39.159.121.238 | 39.159.121.239 | 14 |
| 8 | 39.159.121.240/28 | 39.159.121.240 | 39.159.121.241 | 39.159.121.254 | 39.159.121.255 | 14 |
Split 39.159.121.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 39.159.121.128/29 | 39.159.121.128 | 39.159.121.129 | 39.159.121.134 | 39.159.121.135 | 6 |
| 2 | 39.159.121.136/29 | 39.159.121.136 | 39.159.121.137 | 39.159.121.142 | 39.159.121.143 | 6 |
| 3 | 39.159.121.144/29 | 39.159.121.144 | 39.159.121.145 | 39.159.121.150 | 39.159.121.151 | 6 |
| 4 | 39.159.121.152/29 | 39.159.121.152 | 39.159.121.153 | 39.159.121.158 | 39.159.121.159 | 6 |
| 5 | 39.159.121.160/29 | 39.159.121.160 | 39.159.121.161 | 39.159.121.166 | 39.159.121.167 | 6 |
| 6 | 39.159.121.168/29 | 39.159.121.168 | 39.159.121.169 | 39.159.121.174 | 39.159.121.175 | 6 |
| 7 | 39.159.121.176/29 | 39.159.121.176 | 39.159.121.177 | 39.159.121.182 | 39.159.121.183 | 6 |
| 8 | 39.159.121.184/29 | 39.159.121.184 | 39.159.121.185 | 39.159.121.190 | 39.159.121.191 | 6 |
| 9 | 39.159.121.192/29 | 39.159.121.192 | 39.159.121.193 | 39.159.121.198 | 39.159.121.199 | 6 |
| 10 | 39.159.121.200/29 | 39.159.121.200 | 39.159.121.201 | 39.159.121.206 | 39.159.121.207 | 6 |
| 11 | 39.159.121.208/29 | 39.159.121.208 | 39.159.121.209 | 39.159.121.214 | 39.159.121.215 | 6 |
| 12 | 39.159.121.216/29 | 39.159.121.216 | 39.159.121.217 | 39.159.121.222 | 39.159.121.223 | 6 |
| 13 | 39.159.121.224/29 | 39.159.121.224 | 39.159.121.225 | 39.159.121.230 | 39.159.121.231 | 6 |
| 14 | 39.159.121.232/29 | 39.159.121.232 | 39.159.121.233 | 39.159.121.238 | 39.159.121.239 | 6 |
| 15 | 39.159.121.240/29 | 39.159.121.240 | 39.159.121.241 | 39.159.121.246 | 39.159.121.247 | 6 |
| 16 | 39.159.121.248/29 | 39.159.121.248 | 39.159.121.249 | 39.159.121.254 | 39.159.121.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.