14.74.232.89.in-addr.arpa has no CNAME records.
Question and response
Question
dig 14.74.232.89.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
74.232.89.in-addr.arpa. 867 SOA ns.tattelecom.ru. root.tattelecom.ru. 2020090100 28800 14400 1814400 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0