ns3.attdns.com has no NS records.
NS records for this zone are defined at attdns.com.
NS records for this zone are defined at attdns.com.
Question and response
Question
dig ns3.attdns.com. NS
Answer
The response has no answer records.
Authority
attdns.com. 300 SOA ns0.attdns.com. eiss-dns.att.com. 2026011901 3600 1800 2592000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0