mccmx2.pti.com has no NS records.
NS records for this zone are defined at pti.com.
NS records for this zone are defined at pti.com.
Question and response
Question
dig mccmx2.pti.com. NS
Answer
The response has no answer records.
Authority
pti.com. 300 SOA ns1-01.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0