edge4.ktbizoffice.com has no NS records.
NS records for this zone are defined at ktbizoffice.com.
NS records for this zone are defined at ktbizoffice.com.
Question and response
Question
dig edge4.ktbizoffice.com. NS
Answer
The response has no answer records.
Authority
ktbizoffice.com. 3600 SOA ns1.ktbizoffice.com. hostmaster. 1978 900 600 86400 3600
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0