66.45.7534.ip4.static.sl-reverse.com has no AAAA records.
Question and response
Question
dig 66.45.7534.ip4.static.sl-reverse.com. AAAA
Answer
The response has no answer records.
Authority
ip4.static.sl-reverse.com. 86400 SOA ns1.arpa.networklayer.com. support.softlayer.com. 2018022300 7200 600 1728000 43200
Additional
The response has no additional records.