c2.ecollege.com has no NS records.
NS records for this zone are defined at ecollege.com.
NS records for this zone are defined at ecollege.com.
Question and response
Question
dig c2.ecollege.com. NS
Answer
The response has no answer records.
Authority
ecollege.com. 900 SOA dns-emea-1.ptns.pearson.com. gns-dnsoperations.pearson.com. 2005089195 900 900 2592000 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0