242.192.0.0/10
PublicClass E (Reserved) — /10 prefix — 4,194,302 usable hosts
Network address — the base address of the block (242.192.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 242.255.255.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 4,194,302 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.192.0.0 is the dotted-decimal equivalent of /10. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 242.192.0.0/10 |
| Network Address | 242.192.0.0 |
| Broadcast Address | 242.255.255.255 |
| Subnet Mask | 255.192.0.0 |
| Wildcard Mask | 0.63.255.255 |
| Prefix Length | /10 |
| IP Address Class | Class E (Reserved) |
| Total IP Addresses | 4,194,304 |
| Usable Host Addresses | 4,194,302 |
| First Usable IP | 242.192.0.1 |
| Last Usable IP | 242.255.255.254 |
| Network (Hex) | 0xF2C00000 |
| Broadcast (Hex) | 0xF2FFFFFF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 10 bits (1s in the mask) identify the network. The remaining 22 bits identify hosts within the network.
Split into Equal Subnets
Split 242.192.0.0/10 into 2 equal /11 subnets (2,097,150 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 242.192.0.0/11 | 242.192.0.0 | 242.192.0.1 | 242.223.255.254 | 242.223.255.255 | 2,097,150 |
| 2 | 242.224.0.0/11 | 242.224.0.0 | 242.224.0.1 | 242.255.255.254 | 242.255.255.255 | 2,097,150 |
Split 242.192.0.0/10 into 4 equal /12 subnets (1,048,574 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 242.192.0.0/12 | 242.192.0.0 | 242.192.0.1 | 242.207.255.254 | 242.207.255.255 | 1,048,574 |
| 2 | 242.208.0.0/12 | 242.208.0.0 | 242.208.0.1 | 242.223.255.254 | 242.223.255.255 | 1,048,574 |
| 3 | 242.224.0.0/12 | 242.224.0.0 | 242.224.0.1 | 242.239.255.254 | 242.239.255.255 | 1,048,574 |
| 4 | 242.240.0.0/12 | 242.240.0.0 | 242.240.0.1 | 242.255.255.254 | 242.255.255.255 | 1,048,574 |
Split 242.192.0.0/10 into 8 equal /13 subnets (524,286 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 242.192.0.0/13 | 242.192.0.0 | 242.192.0.1 | 242.199.255.254 | 242.199.255.255 | 524,286 |
| 2 | 242.200.0.0/13 | 242.200.0.0 | 242.200.0.1 | 242.207.255.254 | 242.207.255.255 | 524,286 |
| 3 | 242.208.0.0/13 | 242.208.0.0 | 242.208.0.1 | 242.215.255.254 | 242.215.255.255 | 524,286 |
| 4 | 242.216.0.0/13 | 242.216.0.0 | 242.216.0.1 | 242.223.255.254 | 242.223.255.255 | 524,286 |
| 5 | 242.224.0.0/13 | 242.224.0.0 | 242.224.0.1 | 242.231.255.254 | 242.231.255.255 | 524,286 |
| 6 | 242.232.0.0/13 | 242.232.0.0 | 242.232.0.1 | 242.239.255.254 | 242.239.255.255 | 524,286 |
| 7 | 242.240.0.0/13 | 242.240.0.0 | 242.240.0.1 | 242.247.255.254 | 242.247.255.255 | 524,286 |
| 8 | 242.248.0.0/13 | 242.248.0.0 | 242.248.0.1 | 242.255.255.254 | 242.255.255.255 | 524,286 |
Split 242.192.0.0/10 into 16 equal /14 subnets (262,142 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 242.192.0.0/14 | 242.192.0.0 | 242.192.0.1 | 242.195.255.254 | 242.195.255.255 | 262,142 |
| 2 | 242.196.0.0/14 | 242.196.0.0 | 242.196.0.1 | 242.199.255.254 | 242.199.255.255 | 262,142 |
| 3 | 242.200.0.0/14 | 242.200.0.0 | 242.200.0.1 | 242.203.255.254 | 242.203.255.255 | 262,142 |
| 4 | 242.204.0.0/14 | 242.204.0.0 | 242.204.0.1 | 242.207.255.254 | 242.207.255.255 | 262,142 |
| 5 | 242.208.0.0/14 | 242.208.0.0 | 242.208.0.1 | 242.211.255.254 | 242.211.255.255 | 262,142 |
| 6 | 242.212.0.0/14 | 242.212.0.0 | 242.212.0.1 | 242.215.255.254 | 242.215.255.255 | 262,142 |
| 7 | 242.216.0.0/14 | 242.216.0.0 | 242.216.0.1 | 242.219.255.254 | 242.219.255.255 | 262,142 |
| 8 | 242.220.0.0/14 | 242.220.0.0 | 242.220.0.1 | 242.223.255.254 | 242.223.255.255 | 262,142 |
| 9 | 242.224.0.0/14 | 242.224.0.0 | 242.224.0.1 | 242.227.255.254 | 242.227.255.255 | 262,142 |
| 10 | 242.228.0.0/14 | 242.228.0.0 | 242.228.0.1 | 242.231.255.254 | 242.231.255.255 | 262,142 |
| 11 | 242.232.0.0/14 | 242.232.0.0 | 242.232.0.1 | 242.235.255.254 | 242.235.255.255 | 262,142 |
| 12 | 242.236.0.0/14 | 242.236.0.0 | 242.236.0.1 | 242.239.255.254 | 242.239.255.255 | 262,142 |
| 13 | 242.240.0.0/14 | 242.240.0.0 | 242.240.0.1 | 242.243.255.254 | 242.243.255.255 | 262,142 |
| 14 | 242.244.0.0/14 | 242.244.0.0 | 242.244.0.1 | 242.247.255.254 | 242.247.255.255 | 262,142 |
| 15 | 242.248.0.0/14 | 242.248.0.0 | 242.248.0.1 | 242.251.255.254 | 242.251.255.255 | 262,142 |
| 16 | 242.252.0.0/14 | 242.252.0.0 | 242.252.0.1 | 242.255.255.254 | 242.255.255.255 | 262,142 |