ns1.bnpparibas.com has no CNAME records.
Question and response
Question
dig ns1.bnpparibas.com. NS
Answer
The response has no answer records.
Authority
bnpparibas.com. 600 SOA ns1.bnpparibas.com. i_names.bnpparibas.com. 21228 14400 3600 2419200 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0