listip.state.gov has no NS records.
NS records for this zone are defined at state.gov.
NS records for this zone are defined at state.gov.
Question and response
Question
dig listip.state.gov. NS
Answer
The response has no answer records.
Authority
state.gov. 900 SOA o-bimc-dns001.grid.state.sbu. hostmaster.state.gov. 78841 10800 1080 2419200 900
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0