ip174-64-17-97.br.br.cox.net has no NS records.
NS records for this zone are defined at br.cox.net.
NS records for this zone are defined at br.cox.net.
Question and response
Question
dig ip174-64-17-97.br.br.cox.net. NS
Answer
The response has no answer records.
Authority
br.cox.net. 86400 SOA dukensumpov1z.services.cox.net. hostmaster.cox.net. 781212429 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0