223.51.111.128/25
PublicClass C — /25 prefix — 126 usable hosts
Network address — the base address of the block (223.51.111.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 223.51.111.255 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 | 223.51.111.128/25 |
| Network Address | 223.51.111.128 |
| Broadcast Address | 223.51.111.255 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class C |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 223.51.111.129 |
| Last Usable IP | 223.51.111.254 |
| Network (Hex) | 0xDF336F80 |
| Broadcast (Hex) | 0xDF336FFF |
| 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 223.51.111.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 223.51.111.128/26 | 223.51.111.128 | 223.51.111.129 | 223.51.111.190 | 223.51.111.191 | 62 |
| 2 | 223.51.111.192/26 | 223.51.111.192 | 223.51.111.193 | 223.51.111.254 | 223.51.111.255 | 62 |
Split 223.51.111.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 223.51.111.128/27 | 223.51.111.128 | 223.51.111.129 | 223.51.111.158 | 223.51.111.159 | 30 |
| 2 | 223.51.111.160/27 | 223.51.111.160 | 223.51.111.161 | 223.51.111.190 | 223.51.111.191 | 30 |
| 3 | 223.51.111.192/27 | 223.51.111.192 | 223.51.111.193 | 223.51.111.222 | 223.51.111.223 | 30 |
| 4 | 223.51.111.224/27 | 223.51.111.224 | 223.51.111.225 | 223.51.111.254 | 223.51.111.255 | 30 |
Split 223.51.111.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 223.51.111.128/28 | 223.51.111.128 | 223.51.111.129 | 223.51.111.142 | 223.51.111.143 | 14 |
| 2 | 223.51.111.144/28 | 223.51.111.144 | 223.51.111.145 | 223.51.111.158 | 223.51.111.159 | 14 |
| 3 | 223.51.111.160/28 | 223.51.111.160 | 223.51.111.161 | 223.51.111.174 | 223.51.111.175 | 14 |
| 4 | 223.51.111.176/28 | 223.51.111.176 | 223.51.111.177 | 223.51.111.190 | 223.51.111.191 | 14 |
| 5 | 223.51.111.192/28 | 223.51.111.192 | 223.51.111.193 | 223.51.111.206 | 223.51.111.207 | 14 |
| 6 | 223.51.111.208/28 | 223.51.111.208 | 223.51.111.209 | 223.51.111.222 | 223.51.111.223 | 14 |
| 7 | 223.51.111.224/28 | 223.51.111.224 | 223.51.111.225 | 223.51.111.238 | 223.51.111.239 | 14 |
| 8 | 223.51.111.240/28 | 223.51.111.240 | 223.51.111.241 | 223.51.111.254 | 223.51.111.255 | 14 |
Split 223.51.111.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 223.51.111.128/29 | 223.51.111.128 | 223.51.111.129 | 223.51.111.134 | 223.51.111.135 | 6 |
| 2 | 223.51.111.136/29 | 223.51.111.136 | 223.51.111.137 | 223.51.111.142 | 223.51.111.143 | 6 |
| 3 | 223.51.111.144/29 | 223.51.111.144 | 223.51.111.145 | 223.51.111.150 | 223.51.111.151 | 6 |
| 4 | 223.51.111.152/29 | 223.51.111.152 | 223.51.111.153 | 223.51.111.158 | 223.51.111.159 | 6 |
| 5 | 223.51.111.160/29 | 223.51.111.160 | 223.51.111.161 | 223.51.111.166 | 223.51.111.167 | 6 |
| 6 | 223.51.111.168/29 | 223.51.111.168 | 223.51.111.169 | 223.51.111.174 | 223.51.111.175 | 6 |
| 7 | 223.51.111.176/29 | 223.51.111.176 | 223.51.111.177 | 223.51.111.182 | 223.51.111.183 | 6 |
| 8 | 223.51.111.184/29 | 223.51.111.184 | 223.51.111.185 | 223.51.111.190 | 223.51.111.191 | 6 |
| 9 | 223.51.111.192/29 | 223.51.111.192 | 223.51.111.193 | 223.51.111.198 | 223.51.111.199 | 6 |
| 10 | 223.51.111.200/29 | 223.51.111.200 | 223.51.111.201 | 223.51.111.206 | 223.51.111.207 | 6 |
| 11 | 223.51.111.208/29 | 223.51.111.208 | 223.51.111.209 | 223.51.111.214 | 223.51.111.215 | 6 |
| 12 | 223.51.111.216/29 | 223.51.111.216 | 223.51.111.217 | 223.51.111.222 | 223.51.111.223 | 6 |
| 13 | 223.51.111.224/29 | 223.51.111.224 | 223.51.111.225 | 223.51.111.230 | 223.51.111.231 | 6 |
| 14 | 223.51.111.232/29 | 223.51.111.232 | 223.51.111.233 | 223.51.111.238 | 223.51.111.239 | 6 |
| 15 | 223.51.111.240/29 | 223.51.111.240 | 223.51.111.241 | 223.51.111.246 | 223.51.111.247 | 6 |
| 16 | 223.51.111.248/29 | 223.51.111.248 | 223.51.111.249 | 223.51.111.254 | 223.51.111.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.