127.228.198.128/25
Loopback RFC 5735Class A — /25 prefix — 126 usable hosts
Network address — the base address of the block (127.228.198.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 127.228.198.255 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 | 127.228.198.128/25 |
| Network Address | 127.228.198.128 |
| Broadcast Address | 127.228.198.255 |
| 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 | 127.228.198.129 |
| Last Usable IP | 127.228.198.254 |
| Network (Hex) | 0x7FE4C680 |
| Broadcast (Hex) | 0x7FE4C6FF |
| Governing RFC | RFC 5735 |
| Address Type | Loopback |
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 127.228.198.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 127.228.198.128/26 | 127.228.198.128 | 127.228.198.129 | 127.228.198.190 | 127.228.198.191 | 62 |
| 2 | 127.228.198.192/26 | 127.228.198.192 | 127.228.198.193 | 127.228.198.254 | 127.228.198.255 | 62 |
Split 127.228.198.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 127.228.198.128/27 | 127.228.198.128 | 127.228.198.129 | 127.228.198.158 | 127.228.198.159 | 30 |
| 2 | 127.228.198.160/27 | 127.228.198.160 | 127.228.198.161 | 127.228.198.190 | 127.228.198.191 | 30 |
| 3 | 127.228.198.192/27 | 127.228.198.192 | 127.228.198.193 | 127.228.198.222 | 127.228.198.223 | 30 |
| 4 | 127.228.198.224/27 | 127.228.198.224 | 127.228.198.225 | 127.228.198.254 | 127.228.198.255 | 30 |
Split 127.228.198.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 127.228.198.128/28 | 127.228.198.128 | 127.228.198.129 | 127.228.198.142 | 127.228.198.143 | 14 |
| 2 | 127.228.198.144/28 | 127.228.198.144 | 127.228.198.145 | 127.228.198.158 | 127.228.198.159 | 14 |
| 3 | 127.228.198.160/28 | 127.228.198.160 | 127.228.198.161 | 127.228.198.174 | 127.228.198.175 | 14 |
| 4 | 127.228.198.176/28 | 127.228.198.176 | 127.228.198.177 | 127.228.198.190 | 127.228.198.191 | 14 |
| 5 | 127.228.198.192/28 | 127.228.198.192 | 127.228.198.193 | 127.228.198.206 | 127.228.198.207 | 14 |
| 6 | 127.228.198.208/28 | 127.228.198.208 | 127.228.198.209 | 127.228.198.222 | 127.228.198.223 | 14 |
| 7 | 127.228.198.224/28 | 127.228.198.224 | 127.228.198.225 | 127.228.198.238 | 127.228.198.239 | 14 |
| 8 | 127.228.198.240/28 | 127.228.198.240 | 127.228.198.241 | 127.228.198.254 | 127.228.198.255 | 14 |
Split 127.228.198.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 127.228.198.128/29 | 127.228.198.128 | 127.228.198.129 | 127.228.198.134 | 127.228.198.135 | 6 |
| 2 | 127.228.198.136/29 | 127.228.198.136 | 127.228.198.137 | 127.228.198.142 | 127.228.198.143 | 6 |
| 3 | 127.228.198.144/29 | 127.228.198.144 | 127.228.198.145 | 127.228.198.150 | 127.228.198.151 | 6 |
| 4 | 127.228.198.152/29 | 127.228.198.152 | 127.228.198.153 | 127.228.198.158 | 127.228.198.159 | 6 |
| 5 | 127.228.198.160/29 | 127.228.198.160 | 127.228.198.161 | 127.228.198.166 | 127.228.198.167 | 6 |
| 6 | 127.228.198.168/29 | 127.228.198.168 | 127.228.198.169 | 127.228.198.174 | 127.228.198.175 | 6 |
| 7 | 127.228.198.176/29 | 127.228.198.176 | 127.228.198.177 | 127.228.198.182 | 127.228.198.183 | 6 |
| 8 | 127.228.198.184/29 | 127.228.198.184 | 127.228.198.185 | 127.228.198.190 | 127.228.198.191 | 6 |
| 9 | 127.228.198.192/29 | 127.228.198.192 | 127.228.198.193 | 127.228.198.198 | 127.228.198.199 | 6 |
| 10 | 127.228.198.200/29 | 127.228.198.200 | 127.228.198.201 | 127.228.198.206 | 127.228.198.207 | 6 |
| 11 | 127.228.198.208/29 | 127.228.198.208 | 127.228.198.209 | 127.228.198.214 | 127.228.198.215 | 6 |
| 12 | 127.228.198.216/29 | 127.228.198.216 | 127.228.198.217 | 127.228.198.222 | 127.228.198.223 | 6 |
| 13 | 127.228.198.224/29 | 127.228.198.224 | 127.228.198.225 | 127.228.198.230 | 127.228.198.231 | 6 |
| 14 | 127.228.198.232/29 | 127.228.198.232 | 127.228.198.233 | 127.228.198.238 | 127.228.198.239 | 6 |
| 15 | 127.228.198.240/29 | 127.228.198.240 | 127.228.198.241 | 127.228.198.246 | 127.228.198.247 | 6 |
| 16 | 127.228.198.248/29 | 127.228.198.248 | 127.228.198.249 | 127.228.198.254 | 127.228.198.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.