Apex domains cannot have CNAME records.
Question and response
Question
dig telesystem.us. NS
Answer
telesystem.us. 5 NS ns3.buckeyecom.net.
telesystem.us. 5 NS ns1.buckeyecom.net.
telesystem.us. 5 NS ns2.buckeyecom.net.
Authority
The response has no authority records.
Additional
ns1.buckeyecom.net. 5 A 72.240.1.105
ns2.buckeyecom.net. 5 A 72.240.1.106
ns3.buckeyecom.net. 5 A 3.209.125.52
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0