4.128-224-87.telenet.ru has no NS records.
NS records for this zone are defined at 128-224-87.telenet.ru.
NS records for this zone are defined at 128-224-87.telenet.ru.
Question and response
Question
dig 4.128-224-87.telenet.ru. NS
Answer
The response has no answer records.
Authority
128-224-87.telenet.ru. 86400 NS ns1.telenet.ru.
128-224-87.telenet.ru. 86400 NS ns2.telenet.ru.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0