rome.us.com has no NS records.
NS records for this zone are defined at us.com.
NS records for this zone are defined at us.com.
Question and response
Question
dig rome.us.com. NS
Answer
The response has no answer records.
Authority
us.com. 3600 SOA ns0.centralnic.net. hostmaster.centralnic.net. 3000735649 900 1800 6048000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0