Apex domains cannot have CNAME records.
Question and response
Question
dig oemdatacenters.net. NS
Answer
oemdatacenters.net. 5 NS pdns2.provisiondata.net.
oemdatacenters.net. 5 NS pdns1.provisiondata.net.
Authority
The response has no authority records.
Additional
pdns1.provisiondata.net. 5 A 199.119.216.254
pdns2.provisiondata.net. 5 A 162.222.137.254
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0