o44.ptr5196.usmail.halara.com has no NS records.
NS records for this zone are defined at halara.com.
NS records for this zone are defined at halara.com.
Question and response
Question
dig o44.ptr5196.usmail.halara.com. NS
Answer
The response has no answer records.
Authority
halara.com. 900 SOA ns-707.awsdns-24.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0