gslb-b2b-ext.v.aaplimg.com has no NS records.
NS records for this zone are defined at v.aaplimg.com.
NS records for this zone are defined at v.aaplimg.com.
Question and response
Question
dig gslb-b2b-ext.v.aaplimg.com. NS
Answer
The response has no answer records.
Authority
v.aaplimg.com. 300 SOA a.gslb.aaplimg.com. hostmaster.apple.com. 1715705934 1800 300 60480 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0