pr1gmehubtest01.msn.com has no NS records.
NS records for this zone are defined at msn.com.
NS records for this zone are defined at msn.com.
Question and response
Question
dig pr1gmehubtest01.msn.com. NS
Answer
The response has no answer records.
Authority
msn.com. 3600 SOA ns1-204.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0