Apex domains cannot have CNAME records.
Question and response
Question
dig pacnet.net. NS
Answer
pacnet.net. 5 NS ns1.asianetcom.net.
pacnet.net. 5 NS ns2.asianetcom.net.
Authority
The response has no authority records.
Additional
ns1.asianetcom.net. 5 A 203.192.163.124
ns2.asianetcom.net. 5 A 203.192.133.9
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0