o1.ptr9724.touchnet.com has no CNAME records.
Question and response
Question
dig o1.ptr9724.touchnet.com. NS
Answer
The response has no answer records.
Authority
touchnet.com. 300 SOA ns1.touchnet.com. dnsadmin.touchnet.com. 2014041124 3600 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0