242.206.140.128/25
PublicClass E (Reserved) — /25 prefix — 126 usable hosts
Network address — the base address of the block (242.206.140.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 242.206.140.255 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 | 242.206.140.128/25 |
| Network Address | 242.206.140.128 |
| Broadcast Address | 242.206.140.255 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class E (Reserved) |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 242.206.140.129 |
| Last Usable IP | 242.206.140.254 |
| Network (Hex) | 0xF2CE8C80 |
| Broadcast (Hex) | 0xF2CE8CFF |
| 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 242.206.140.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 242.206.140.128/26 | 242.206.140.128 | 242.206.140.129 | 242.206.140.190 | 242.206.140.191 | 62 |
| 2 | 242.206.140.192/26 | 242.206.140.192 | 242.206.140.193 | 242.206.140.254 | 242.206.140.255 | 62 |
Split 242.206.140.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 242.206.140.128/27 | 242.206.140.128 | 242.206.140.129 | 242.206.140.158 | 242.206.140.159 | 30 |
| 2 | 242.206.140.160/27 | 242.206.140.160 | 242.206.140.161 | 242.206.140.190 | 242.206.140.191 | 30 |
| 3 | 242.206.140.192/27 | 242.206.140.192 | 242.206.140.193 | 242.206.140.222 | 242.206.140.223 | 30 |
| 4 | 242.206.140.224/27 | 242.206.140.224 | 242.206.140.225 | 242.206.140.254 | 242.206.140.255 | 30 |
Split 242.206.140.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 242.206.140.128/28 | 242.206.140.128 | 242.206.140.129 | 242.206.140.142 | 242.206.140.143 | 14 |
| 2 | 242.206.140.144/28 | 242.206.140.144 | 242.206.140.145 | 242.206.140.158 | 242.206.140.159 | 14 |
| 3 | 242.206.140.160/28 | 242.206.140.160 | 242.206.140.161 | 242.206.140.174 | 242.206.140.175 | 14 |
| 4 | 242.206.140.176/28 | 242.206.140.176 | 242.206.140.177 | 242.206.140.190 | 242.206.140.191 | 14 |
| 5 | 242.206.140.192/28 | 242.206.140.192 | 242.206.140.193 | 242.206.140.206 | 242.206.140.207 | 14 |
| 6 | 242.206.140.208/28 | 242.206.140.208 | 242.206.140.209 | 242.206.140.222 | 242.206.140.223 | 14 |
| 7 | 242.206.140.224/28 | 242.206.140.224 | 242.206.140.225 | 242.206.140.238 | 242.206.140.239 | 14 |
| 8 | 242.206.140.240/28 | 242.206.140.240 | 242.206.140.241 | 242.206.140.254 | 242.206.140.255 | 14 |
Split 242.206.140.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 242.206.140.128/29 | 242.206.140.128 | 242.206.140.129 | 242.206.140.134 | 242.206.140.135 | 6 |
| 2 | 242.206.140.136/29 | 242.206.140.136 | 242.206.140.137 | 242.206.140.142 | 242.206.140.143 | 6 |
| 3 | 242.206.140.144/29 | 242.206.140.144 | 242.206.140.145 | 242.206.140.150 | 242.206.140.151 | 6 |
| 4 | 242.206.140.152/29 | 242.206.140.152 | 242.206.140.153 | 242.206.140.158 | 242.206.140.159 | 6 |
| 5 | 242.206.140.160/29 | 242.206.140.160 | 242.206.140.161 | 242.206.140.166 | 242.206.140.167 | 6 |
| 6 | 242.206.140.168/29 | 242.206.140.168 | 242.206.140.169 | 242.206.140.174 | 242.206.140.175 | 6 |
| 7 | 242.206.140.176/29 | 242.206.140.176 | 242.206.140.177 | 242.206.140.182 | 242.206.140.183 | 6 |
| 8 | 242.206.140.184/29 | 242.206.140.184 | 242.206.140.185 | 242.206.140.190 | 242.206.140.191 | 6 |
| 9 | 242.206.140.192/29 | 242.206.140.192 | 242.206.140.193 | 242.206.140.198 | 242.206.140.199 | 6 |
| 10 | 242.206.140.200/29 | 242.206.140.200 | 242.206.140.201 | 242.206.140.206 | 242.206.140.207 | 6 |
| 11 | 242.206.140.208/29 | 242.206.140.208 | 242.206.140.209 | 242.206.140.214 | 242.206.140.215 | 6 |
| 12 | 242.206.140.216/29 | 242.206.140.216 | 242.206.140.217 | 242.206.140.222 | 242.206.140.223 | 6 |
| 13 | 242.206.140.224/29 | 242.206.140.224 | 242.206.140.225 | 242.206.140.230 | 242.206.140.231 | 6 |
| 14 | 242.206.140.232/29 | 242.206.140.232 | 242.206.140.233 | 242.206.140.238 | 242.206.140.239 | 6 |
| 15 | 242.206.140.240/29 | 242.206.140.240 | 242.206.140.241 | 242.206.140.246 | 242.206.140.247 | 6 |
| 16 | 242.206.140.248/29 | 242.206.140.248 | 242.206.140.249 | 242.206.140.254 | 242.206.140.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.