226.237.16.128/25
Multicast RFC 5771Class D (Multicast) — /25 prefix — 126 usable hosts
Network address — the base address of the block (226.237.16.128). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 226.237.16.255 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 | 226.237.16.128/25 |
| Network Address | 226.237.16.128 |
| Broadcast Address | 226.237.16.255 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class D (Multicast) |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 226.237.16.129 |
| Last Usable IP | 226.237.16.254 |
| Network (Hex) | 0xE2ED1080 |
| Broadcast (Hex) | 0xE2ED10FF |
| Governing RFC | RFC 5771 |
| Address Type | Multicast |
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 226.237.16.128/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 226.237.16.128/26 | 226.237.16.128 | 226.237.16.129 | 226.237.16.190 | 226.237.16.191 | 62 |
| 2 | 226.237.16.192/26 | 226.237.16.192 | 226.237.16.193 | 226.237.16.254 | 226.237.16.255 | 62 |
Split 226.237.16.128/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 226.237.16.128/27 | 226.237.16.128 | 226.237.16.129 | 226.237.16.158 | 226.237.16.159 | 30 |
| 2 | 226.237.16.160/27 | 226.237.16.160 | 226.237.16.161 | 226.237.16.190 | 226.237.16.191 | 30 |
| 3 | 226.237.16.192/27 | 226.237.16.192 | 226.237.16.193 | 226.237.16.222 | 226.237.16.223 | 30 |
| 4 | 226.237.16.224/27 | 226.237.16.224 | 226.237.16.225 | 226.237.16.254 | 226.237.16.255 | 30 |
Split 226.237.16.128/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 226.237.16.128/28 | 226.237.16.128 | 226.237.16.129 | 226.237.16.142 | 226.237.16.143 | 14 |
| 2 | 226.237.16.144/28 | 226.237.16.144 | 226.237.16.145 | 226.237.16.158 | 226.237.16.159 | 14 |
| 3 | 226.237.16.160/28 | 226.237.16.160 | 226.237.16.161 | 226.237.16.174 | 226.237.16.175 | 14 |
| 4 | 226.237.16.176/28 | 226.237.16.176 | 226.237.16.177 | 226.237.16.190 | 226.237.16.191 | 14 |
| 5 | 226.237.16.192/28 | 226.237.16.192 | 226.237.16.193 | 226.237.16.206 | 226.237.16.207 | 14 |
| 6 | 226.237.16.208/28 | 226.237.16.208 | 226.237.16.209 | 226.237.16.222 | 226.237.16.223 | 14 |
| 7 | 226.237.16.224/28 | 226.237.16.224 | 226.237.16.225 | 226.237.16.238 | 226.237.16.239 | 14 |
| 8 | 226.237.16.240/28 | 226.237.16.240 | 226.237.16.241 | 226.237.16.254 | 226.237.16.255 | 14 |
Split 226.237.16.128/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 226.237.16.128/29 | 226.237.16.128 | 226.237.16.129 | 226.237.16.134 | 226.237.16.135 | 6 |
| 2 | 226.237.16.136/29 | 226.237.16.136 | 226.237.16.137 | 226.237.16.142 | 226.237.16.143 | 6 |
| 3 | 226.237.16.144/29 | 226.237.16.144 | 226.237.16.145 | 226.237.16.150 | 226.237.16.151 | 6 |
| 4 | 226.237.16.152/29 | 226.237.16.152 | 226.237.16.153 | 226.237.16.158 | 226.237.16.159 | 6 |
| 5 | 226.237.16.160/29 | 226.237.16.160 | 226.237.16.161 | 226.237.16.166 | 226.237.16.167 | 6 |
| 6 | 226.237.16.168/29 | 226.237.16.168 | 226.237.16.169 | 226.237.16.174 | 226.237.16.175 | 6 |
| 7 | 226.237.16.176/29 | 226.237.16.176 | 226.237.16.177 | 226.237.16.182 | 226.237.16.183 | 6 |
| 8 | 226.237.16.184/29 | 226.237.16.184 | 226.237.16.185 | 226.237.16.190 | 226.237.16.191 | 6 |
| 9 | 226.237.16.192/29 | 226.237.16.192 | 226.237.16.193 | 226.237.16.198 | 226.237.16.199 | 6 |
| 10 | 226.237.16.200/29 | 226.237.16.200 | 226.237.16.201 | 226.237.16.206 | 226.237.16.207 | 6 |
| 11 | 226.237.16.208/29 | 226.237.16.208 | 226.237.16.209 | 226.237.16.214 | 226.237.16.215 | 6 |
| 12 | 226.237.16.216/29 | 226.237.16.216 | 226.237.16.217 | 226.237.16.222 | 226.237.16.223 | 6 |
| 13 | 226.237.16.224/29 | 226.237.16.224 | 226.237.16.225 | 226.237.16.230 | 226.237.16.231 | 6 |
| 14 | 226.237.16.232/29 | 226.237.16.232 | 226.237.16.233 | 226.237.16.238 | 226.237.16.239 | 6 |
| 15 | 226.237.16.240/29 | 226.237.16.240 | 226.237.16.241 | 226.237.16.246 | 226.237.16.247 | 6 |
| 16 | 226.237.16.248/29 | 226.237.16.248 | 226.237.16.249 | 226.237.16.254 | 226.237.16.255 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.