ubnt-00.thomasville.org has no NS records.
NS records for this zone are defined at thomasville.org.
NS records for this zone are defined at thomasville.org.
Question and response
Question
dig ubnt-00.thomasville.org. NS
Answer
The response has no answer records.
Authority
thomasville.org. 300 SOA dns1.thomasville.org. na.thomasville.org. 2006072812 28800 14400 3600000 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0