corp.UGMK-TELECOM.RU has no CNAME records.
Question and response
Question
dig corp.UGMK-TELECOM.RU. NS
Answer
The response has no answer records.
Authority
ugmk-telecom.ru. 1317 SOA ns1.ugmk-telecom.ru. vs.ugmk-telecom.ru. 2026022501 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0