us-west-2.compute.amazonaws.com has no AAAA records.
Question and response
Question
dig us-west-2.compute.amazonaws.com. AAAA
Answer
The response has no answer records.
Authority
us-west-2.compute.amazonaws.com. 60 SOA ns-625.awsdns-14.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 60
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0