ns-e.ant.isi.edu has no CNAME records.
Question and response
Question
dig ns-e.ant.isi.edu. NS
Answer
The response has no answer records.
Authority
ant.isi.edu. 5623 SOA vir.isi.edu. ant.isi.edu. 1771916785 7200 7200 604800 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0