164.135.209.in-addr.arpa CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig 164.135.209.in-addr.arpa. NS

Answer

164.135.209.in-addr.arpa. 3 NS nsbos2.bostonfiber.net. 164.135.209.in-addr.arpa. 3 NS nsbos1.bostonfiber.net.

Authority

The response has no authority records.

Additional

nsbos1.bostonfiber.net. 3 A 23.157.24.157 nsbos2.bostonfiber.net. 3 A 23.157.24.158 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0