bb002.bbtec.net has no CNAME records.
Question and response
Question
dig bb002.bbtec.net. NS
Answer
The response has no answer records.
Authority
bbtec.net. 10677 SOA bb001.bbtec.net. noc.bbtec.net. 2026021901 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0