223.81.174.95.static.s2bnet.net has no NS records.
NS records for this zone are defined at s2bnet.net.
NS records for this zone are defined at s2bnet.net.
Question and response
Question
dig 223.81.174.95.static.s2bnet.net. NS
Answer
The response has no answer records.
Authority
s2bnet.net. 900 SOA ns-754.awsdns-30.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0