o2.ptr7519.eub.sensedata.com.br has no NS records.
NS records for this zone are defined at sensedata.com.br.
NS records for this zone are defined at sensedata.com.br.
Question and response
Question
dig o2.ptr7519.eub.sensedata.com.br. NS
Answer
The response has no answer records.
Authority
sensedata.com.br. 1800 SOA eva.ns.cloudflare.com. dns.cloudflare.com. 2398831535 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0