omnitel.crowdfiber.com has no NS records.
NS records for this zone are defined at crowdfiber.com.
NS records for this zone are defined at crowdfiber.com.
Question and response
Question
dig omnitel.crowdfiber.com. NS
Answer
The response has no answer records.
Authority
crowdfiber.com. 1800 SOA ada.ns.cloudflare.com. dns.cloudflare.com. 2399635120 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0