173.0.60.44.reverse.wowrack.com has no NS records.
NS records for this zone are defined at wowrack.com.
NS records for this zone are defined at wowrack.com.
Question and response
Question
dig 173.0.60.44.reverse.wowrack.com. NS
Answer
The response has no answer records.
Authority
wowrack.com. 3600 SOA ns1.wowrack.com. support.wowrack.com. 16641 900 600 86400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0