shadowcat-i.ups.com has no NS records.
NS records for this zone are defined at ups.com.
NS records for this zone are defined at ups.com.
Question and response
Question
dig shadowcat-i.ups.com. NS
Answer
The response has no answer records.
Authority
ups.com. 3600 SOA ibx.ups.com. hostmaster.nowhere.null. 2023427841 21600 1800 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0