dns1.bigpipeinc.com has no CNAME records.
Question and response
Question
dig dns1.bigpipeinc.com. NS
Answer
The response has no answer records.
Authority
bigpipeinc.com. 4522 SOA ns5.no.cg.shawcable.net. admin.shaw.ca. 2014071050 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0