Apex domains cannot have CNAME records.
Question and response
Question
dig multacom.net. NS
Answer
multacom.net. 5 NS ns1.multacom.com.
multacom.net. 5 NS ns2.multacom.com.
Authority
The response has no authority records.
Additional
ns1.Multacom.COM. 2 A 204.13.152.2
ns2.multacom.com. 2 A 204.13.152.3
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0