201-20-82-126.mobile.mobtelecom.com.br has no NS records.
NS records for this zone are defined at mobtelecom.com.br.
NS records for this zone are defined at mobtelecom.com.br.
Question and response
Question
dig 201-20-82-126.mobile.mobtelecom.com.br. NS
Answer
The response has no answer records.
Authority
mobtelecom.com.br. 300 SOA dns1.argohost.net. datecenter-l.mobtelecom.com.br. 2026032805 3600 600 1209600 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0