There are 3 IPv4 private subnets:
- 10.0.0.0/8
- 172.16.0.0/12
- 192.168.0.0/16
But what if you need to get a list of all summarized public subnet ranges, excluding private ones? Here is the list:
| IPv4 subnet | IPv4 range |
|---|---|
| 0.0.0.0/5 | 0.0.0.0 - 7.255.255.255 |
| 8.0.0.0/7 | 8.0.0.0 - 9.255.255.255 |
| Private | 10.0.0.0 - 10.255.255.255 |
| 11.0.0.0/8 | 11.0.0.0 - 11.255.255.255 |
| 12.0.0.0/6 | 12.0.0.0 - 15.255.255.255 |
| 16.0.0.0/4 | 16.0.0.0 - 31.255.255.255 |
| 32.0.0.0/3 | 32.0.0.0 - 63.255.255.255 |
| 64.0.0.0/2 | 64.0.0.0 - 127.255.255.255 |
| 128.0.0.0/3 | 128.0.0.0 - 159.255.255.255 |
| 160.0.0.0/5 | 160.0.0.0 - 167.255.255.255 |
| 168.0.0.0/6 | 168.0.0.0 - 171.255.255.255 |
| 172.0.0.0/12 | 172.0.0.0 - 172.15.255.255 |
| Private | 172.16.0.0 - 172.31.255.255 |
| 172.32.0.0/11 | 172.32.0.0 - 172.63.255.255 |
| 172.64.0.0/10 | 172.64.0.0 - 172.127.255.255 |
| 172.128.0.0/9 | 172.128.0.0 - 172.255.255.255 |
| 173.0.0.0/8 | 173.0.0.0 - 173.255.255.255 |
| 174.0.0.0/7 | 174.0.0.0 - 175.255.255.255 |
| 176.0.0.0/4 | 176.0.0.0 - 191.255.255.254 |
| 192.0.0.0/9 | 192.0.0.0 - 192.127.255.255 |
| 192.128.0.0/11 | 192.128.0.0 - 192.159.255.255 |
| 192.160.0.0/13 | 192.160.0.0 - 192.167.255.255 |
| Private | 192.168.0.0 - 192.168.255.255 |
| 192.169.0.0/16 | 192.169.0.0 - 192.169.255.255 |
| 192.170.0.0/15 | 192.170.0.0 - 192.171.255.255 |
| 192.172.0.0/14 | 192.172.0.0 - 192.175.255.255 |
| 192.176.0.0/12 | 192.176.0.0 - 192.191.255.255 |
| 192.192.0.0/10 | 192.192.0.0 - 192.255.255.255 |
| 193.0.0.0/8 | 193.0.0.0 - 193.255.255.255 |
| 194.0.0.0/7 | 194.0.0.0 - 195.255.255.255 |
| 196.0.0.0/6 | 196.0.0.0 - 199.255.255.255 |
| 200.0.0.0/5 | 200.0.0.0 - 207.255.255.255 |
| 208.0.0.0/4 | 208.0.0.0 - 223.255.255.255 |
| 224.0.0.0/3 | 224.0.0.0 - 255.255.255.255 |
Keep in mind this list includes so-called Special Purpose Addresses like 127.0.0.0/8 (Loopback) or 169.254.0.0/16 (Link Local). It only excludes 3 well know Private-Use subnets!
Copy-paste list (excluding private subnets)
- 0.0.0.0/5
- 8.0.0.0/7
- 11.0.0.0/8
- 12.0.0.0/6
- 16.0.0.0/4
- 32.0.0.0/3
- 64.0.0.0/2
- 128.0.0.0/3
- 160.0.0.0/5
- 168.0.0.0/6
- 172.0.0.0/12
- 172.32.0.0/11
- 172.64.0.0/10
- 172.128.0.0/9
- 173.0.0.0/8
- 174.0.0.0/7
- 176.0.0.0/4
- 192.0.0.0/9
- 192.128.0.0/11
- 192.160.0.0/13
- 192.169.0.0/16
- 192.170.0.0/15
- 192.172.0.0/14
- 192.176.0.0/12
- 192.192.0.0/10
- 193.0.0.0/8
- 194.0.0.0/7
- 196.0.0.0/6
- 200.0.0.0/5
- 208.0.0.0/4
- 224.0.0.0/3