10 | Range | First IP | Last IP |
12 | **10.0.0.0/24** | 10.0.0.0 | 10.0.0.255 |
13 | **10.0.0.0/16** | 10.0.0.0 | 10.0.255.255 |
14 | **10.0.0.0/8** | 10.0.0.0 | 10.255.255.255 |
15 | **0.0.0.0/0** | (all) | (all) |
19 - [CIDR range calculator](http://ipaddressguide.com/cidr#range) _(ipaddressguide.com)_