The as-domains are the domains (ccTLD) for American Samoa.
At the as-domains is no restriction on the nationality of registrants. Many as-domains are registered to and used by companies, and organizations with no connection to American Samoa.
"AS" or "A/S" is a suffix indicating a joint stock company in some countries including Norway, Denmark and Czech Republic. Therefore as-domains get some use by companies of this sort.
The price of a as-domain is 149 US-Dollar/year.