Contoh perhitungan kelas C
Subneting 192.168.10.0/26 = 255.255.255.192
Network : 22 = 4
Jumlah host : 26-2 = 64
| Ip subnet | Ip host awal | Ip host akhir | Ip broadcast |
| 192.168.10.0 | 192.168.10.1 | 192.168.10.62 | 192.168.10.63 |
| 192.168.10.64 | 192.168.10.65 | 192.168.10.126 | 192.168.10.127 |
| 192.168.10.128 | 192.168.10.129 | 192.168.10.190 | 192.168.10.191 |
| 192.168.10.192 | 192.168.10.193 | 192.168.10.254 | 192.168.10.254 |
Contoh perhitungan kelas B
Subneting 129.25.0.0/18 = 255.255.224.0
Network : 22 = 4
Jumlah host : 214-2 = 16382
| Ip subnet | Ip host awal | Ip host akhir | Ip broadcast |
| 192.25.0.0 | 192.25.0.1 | 192.25.63.254 | 192.25.63.255 |
| 192.25.64.0 | 192.25.64.1 | 192.25.127.254 | 192.25.127.255 |
| 192.25.128.0 | 192.25.128.1 | 192.25.191.254 | 192.25.191.255 |
| 192.25.192.0 | 192.25.192.1 | 192.25.255.254 | 192.25.255.255 |
Contoh perhitungan kelas A
Subneting 100.0.0.0/10 = 255.192.0.0
Network : 22 = 4
Jumlah host : 222-2 = 419302
| Ip subnet | Ip host awal | Ip host akhir | Ip broadcast |
| 100.0.0.0 | 100.0.0.1 | 100.62.255.254 | 100.62.255.255 |
| 100.63.0.0 | 100.63.0.1 | 100.127.255.254 | 100.127.255.255 |
| 100.128.0.0 | 100.128.0.1 | 100.191.255.254 | 100.191.255.255 |
| 100.192.0.0 | 100.192.0.1 | 100.255.255.254 | 100.255.255.255 |
