mail1-eq-b.ddccommunications.com has no NS records.
NS records for this zone are defined at ddccommunications.com.
NS records for this zone are defined at ddccommunications.com.
Question and response
Question
dig mail1-eq-b.ddccommunications.com. NS
Answer
The response has no answer records.
Authority
ddccommunications.com. 3600 SOA pdns82.ultradns.com. hostmaster.omnicomgroup.com. 2020072198 7200 600 2419200 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0