ip-93-99-211-210.net.vodafone.cz has no NS records.
NS records for this zone are defined at net.vodafone.cz.
NS records for this zone are defined at net.vodafone.cz.
Question and response
Question
dig ip-93-99-211-210.net.vodafone.cz. NS
Answer
The response has no answer records.
Authority
net.vodafone.cz. 60 SOA ns2.vodafone.cz. ns-admin.vodafone.cz. 500878 10800 3600 1209600 60
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0