omta009.uswest2.a.cloudfilter.net has no NS records.
NS records for this zone are defined at a.cloudfilter.net.
NS records for this zone are defined at a.cloudfilter.net.
Question and response
Question
dig omta009.uswest2.a.cloudfilter.net. NS
Answer
The response has no answer records.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0