barracuda02.ucn.net has no NS records.
NS records for this zone are defined at ucn.net.
NS records for this zone are defined at ucn.net.
Question and response
Question
dig barracuda02.ucn.net. NS
Answer
The response has no answer records.
Authority
ucn.net. 3600 SOA via-mx1.ucn.net. admin.ucn.net. 774754 900 3600 3600 3600
Additional
. 0 OPT ; payload 1224, xrcode 0, version 0, flags 0