cnsi-rzud-6601.core.ubs.net has no NS records.
NS records for this zone are defined at ubs.net.
NS records for this zone are defined at ubs.net.
Question and response
Question
dig cnsi-rzud-6601.core.ubs.net. NS
Answer
The response has no answer records.
Authority
ubs.net. 300 SOA cnsi-rzud-6601.core.ubs.net. ncc-internet.ubs.com. 2008086579 3600 360 604800 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0