166.189.209.181.static.intelnet.net.gt has no CNAME records.
Question and response
Question
dig 166.189.209.181.static.intelnet.net.gt. NS
Answer
The response has no answer records.
Authority
static.intelnet.net.gt. 394 SOA gmc.claro.com.sv. please_set_email.absolutely.nowhere. 260 10800 3600 2419200 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0