...
nslookup -q=TXT _cloud-netblocks5.googleusercontent.com 8.8.8.8
35.190.0.0/17
35.190.128.0/18
35.190.192.0/19
35.190.224.0/20
35.192.0.0/14
35.196.0.0/15
35.198.0.0/16
35.199.0.0/17
35.199.128.0/18
35.200.0.0/15
35.204.0.0/15
35.235.216.0/21
nslookup -q=TXT _cloud-netblocks6.googleusercontent.com 8.8.8.8
35.190.224.0/20
35.232.0.0/15
35.234.0.0/16
35.235.0.0/17
35.235.192.0/20
35.236.0.0/14
35.240.0.0/15
35.203.232.0/21
130.211.4.0/22
35.220.0.0/14
35.242.0.0/15
35.244.0.0/14
nslookup -q=TXT _cloud-netblocks7.googleusercontent.com 8.8.8.8
34.64.0.0/12
34.80.0.0/13
34.88.0.0/14
34.92.0.0/15
34.94.0.0/16
34.95.0.0/18
34.95.128.0/17
108.170.216.0/22
108.170.220.0/23
108.170.222.0/24
35.224.0.0/13