dns.drexel3.info has no NS records.
NS records for this zone are defined at drexel3.info.
NS records for this zone are defined at drexel3.info.
Question and response
Question
dig dns.drexel3.info. NS
Answer
The response has no answer records.
Authority
drexel3.info. 3600 SOA dns.drexel3.info. hostmaster.drexel3.info. 1352858065 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0