S0106ac8674c8b6a1.vc.shawcable.net has no CNAME records.
Question and response
Question
dig S0106ac8674c8b6a1.vc.shawcable.net. NS
Answer
The response has no answer records.
Authority
vc.shawcable.net. 562 SOA pd2ns1.st.vc.shawcable.net. dnsadmin.shaw.ca. 2464857743 10800 3600 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0