www.qwest.net has no NS records.
NS records for this zone are defined at qwest.net.
NS records for this zone are defined at qwest.net.
Question and response
Question
dig www.qwest.net. NS
Answer
The response has no answer records.
Authority
qwest.net. 300 SOA authns1.qwest.net. abuse.aup.lumen.com. 2251212000 10800 3600 604800 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0