su

// sv : http://www.svnet.org.sv/niveldos.pdf
sv
com.sv
edu.sv
gob.sv
org.sv
red.sv

// sx : https://www.iana.org/domains/root/db/sx.html
// Submitted by registry <jcvignes@openregistry.com>
sx
gov.sx

// sy : https://www.iana.org/domains/root/db/sy.html
// see also: http://www.gobin.info/domainname/sy.doc
sy
edu.sy
gov.sy
net.sy
mil.sy
com.sy
org.sy