0-27.212.231.66.in-addr.arpa CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig 0-27.212.231.66.in-addr.arpa. NS

Answer

0-27.212.231.66.in-addr.arpa. 5 NS dns1.firstlight.net. 0-27.212.231.66.in-addr.arpa. 5 NS dns2.firstlight.net.

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0