ics1.SanJose1.Level3.net has no NS records.
NS records for this zone are defined at SanJose1.Level3.net.
NS records for this zone are defined at SanJose1.Level3.net.
Question and response
Question
dig ics1.SanJose1.Level3.net. NS
Answer
The response has no answer records.
Authority
SanJose1.Level3.net. 3600 SOA ns2.Level3.net. dns.level3.net. 2026031400 7200 600 2592000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0