Apex domains cannot have CNAME records.
Question and response
Question
dig cableone.biz. NS
Answer
cableone.biz. 4 NS ns1.cableone.net.
cableone.biz. 4 NS ns3.cableone.net.
cableone.biz. 4 NS ns2.cableone.net.
cableone.biz. 4 NS ns4.cableone.net.
Authority
The response has no authority records.
Additional
ns1.cableone.net. 4 A 24.116.0.206
ns2.cableone.net. 4 A 24.119.5.34
ns3.cableone.net. 4 A 52.183.213.202
ns4.cableone.net. 4 A 40.124.33.98
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0