sam.nas.adp.com has no NS records.
NS records for this zone are defined at nas.adp.com.
NS records for this zone are defined at nas.adp.com.
Question and response
Question
dig sam.nas.adp.com. NS
Answer
The response has no answer records.
Authority
adp.com. 60 SOA dc01exdnsgm.net.adp.com. hostmaster.adp.com. 2015071409 10800 3600 2592000 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0