Question and response
Question
dig fxo.us. SRV
Answer
The response has no answer records.
Authority
fxo.us. 900 SOA ns-608.awsdns-12.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0