dns2.tpa.com.br has no NS records.
NS records for this zone are defined at tpa.com.br.
NS records for this zone are defined at tpa.com.br.
Question and response
Question
dig dns2.tpa.com.br. NS
Answer
The response has no answer records.
Authority
tpa.com.br. 1800 SOA jule.ns.cloudflare.com. dns.cloudflare.com. 2398120657 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0