ns.regions.com has no CNAME records.
Question and response
Question
dig ns.regions.com. NS
Answer
The response has no answer records.
Authority
regions.com. 3600 SOA ns5.regions.com. dnsadmin.regions.com. 2014026483 14400 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0