mh1.omnitel.net has no NS records.
NS records for this zone are defined at omnitel.net.
NS records for this zone are defined at omnitel.net.
Question and response
Question
dig mh1.omnitel.net. NS
Answer
The response has no answer records.
Authority
omnitel.net. 1800 SOA cash.ns.cloudflare.com. dns.cloudflare.com. 2397924413 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0