216-239-138.244.cluster.omnis.com has no NS records.
NS records for this zone are defined at omnis.com.
NS records for this zone are defined at omnis.com.
Question and response
Question
dig 216-239-138.244.cluster.omnis.com. NS
Answer
The response has no answer records.
Authority
omnis.com. 900 SOA primary.guardeddns.net. dns-admin.guardeddns.net. 3677 28800 450 1209600 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0