dns.tryaphone.com has no NS records.
NS records for this zone are defined at tryaphone.com.
NS records for this zone are defined at tryaphone.com.
Question and response
Question
dig dns.tryaphone.com. NS
Answer
The response has no answer records.
Authority
tryaphone.com. 3600 SOA dns.tryaphone.com. hostmaster.tryaphone.com. 1633556985 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0