All tools / Subnet cheat sheet
/11 subnet mask
A /11 block has 2,097,152 addresses with the netmask 255.224.0.0.
255.224.0.0| CIDR notation | /11 |
| Netmask | 255.224.0.0 |
| Wildcard mask | 0.31.255.255 |
| Total addresses | 2,097,152 |
| Usable hosts | 2,097,150 |
| Usable in an AWS subnet | n/a (AWS allows /16 to /28) |
| Example range | 10.0.0.0/11: 10.0.0.0 to 10.31.255.255 |
How /11 fits with other sizes
- A /8 holds 8 subnets of /11.
- It splits into 2 subnets of /12.
- It splits into 4 subnets of /13.
- It splits into 16 subnets of /15.