m.customerservice.macys.com has no NS records.
NS records for this zone are defined at macys.com.
NS records for this zone are defined at macys.com.
Question and response
Question
dig macys.moovserv.com. NS
Answer
The response has no answer records.
Authority
moovserv.com. 3601 SOA dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1772927876 43200 3600 604800 3601
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0