1.0-127.217.0.81.in-addr.arpa has no NS records.
NS records for this zone are defined at 0-127.217.0.81.in-addr.arpa.
NS records for this zone are defined at 0-127.217.0.81.in-addr.arpa.
Question and response
Question
dig 1.0-127.217.0.81.in-addr.arpa. NS
Answer
The response has no answer records.
Authority
0-127.217.0.81.in-addr.arpa. 1799 SOA ns1.tele3.cz. root.tele3.cz. 1768390514 28800 7200 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0