.at

nic.at GmbH has run Austria's country code since its delegation in 1988. Roughly 1.4 million domains are registered, and registration is open worldwide without a residency condition. Austrian companies, institutions, and public bodies supply the bulk of demand. A secondary use exists outside the country: because the string matches the English preposition 'at', a handful of registrants build domain hacks that read as complete phrases across the dot.