ntp2.as215248.net has no NS records.
NS records for this zone are defined at as215248.net.
NS records for this zone are defined at as215248.net.
Question and response
Question
dig ntp2.as215248.net. NS
Answer
The response has no answer records.
Authority
as215248.net. 1800 SOA liz.ns.cloudflare.com. dns.cloudflare.com. 2398659182 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0