ns1.phx1.vpls.net has no NS records.
NS records for this zone are defined at phx1.vpls.net.
NS records for this zone are defined at phx1.vpls.net.
Question and response
Question
dig ns1.phx1.vpls.net. NS
Answer
The response has no answer records.
Authority
phx1.vpls.net. 38400 SOA ns1.vpls.net. support.vpls.net. 2026010601 10800 3600 604800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0