200-98-64-90.clouduol.com.br has no NS records.
NS records for this zone are defined at clouduol.com.br.
NS records for this zone are defined at clouduol.com.br.
Question and response
Question
dig 200-98-64-90.clouduol.com.br. NS
Answer
The response has no answer records.
Authority
clouduol.com.br. 3600 SOA a10-dns-uolcsfe1.host.intranet. root.uol.com.br. 2013100466 7200 3600 432000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0