sp.kiwinetworks.com has no NS records.
NS records for this zone are defined at kiwinetworks.com.
NS records for this zone are defined at kiwinetworks.com.
Question and response
Question
dig sp.kiwinetworks.com. NS
Answer
The response has no answer records.
Authority
kiwinetworks.com. 86400 SOA ns1.kiwinetworks.com. kec.kiwinetworks.com. 2026031301 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0