ns3.cablecom.net has no CNAME records.
Question and response
Question
dig ns3.cablecom.net. NS
Answer
The response has no answer records.
Authority
cablecom.net. 10524 SOA ns1.cablecom.net. hostmaster.cablecom.net. 2023021502 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0