blng-hst.tel.ru has no NS records.
NS records for this zone are defined at tel.ru.
NS records for this zone are defined at tel.ru.
Question and response
Question
dig blng-hst.tel.ru. NS
Answer
The response has no answer records.
Authority
tel.ru. 3600 SOA ns.tel.ru. noc.tel.ru. 2026032005 21600 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0