72-14-201-197.v4.fetch.tunnel.googlezip.net has no NS records.
NS records for this zone are defined at googlezip.net.
NS records for this zone are defined at googlezip.net.
Question and response
Question
dig 72-14-201-197.v4.fetch.tunnel.googlezip.net. NS
Answer
The response has no answer records.
Authority
googlezip.net. 60 SOA ns1.google.com. dns-admin.google.com. 887603846 900 900 1800 60
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0