AQ
ATA
The two-letter code for Antarctica is AQ, and the three-letter code is ATA, as per ISO 3166-1 standards.
+672
The dialing code for Antarctica is +672, used for international calls to the country from abroad.
.aq
The top-level domain (TLD) for Antarctica is .aq, used for country-specific internet addresses.
In Antarctica, there is no indigenous language, as it is not a permanent home to any population. However, the languages spoken by people working on the continent typically reflect the countries maintaining research stations there. These languages include English, Spanish, Russian, French, and others, depending on the nationality of the scientists and researchers. English is often the dominant language for communication among international teams.
To learn more about Antarctica's history, geography, culture, economy, and other key aspects, visit the Antarctica Wikipedia page.
To learn more about Antarctica's ISO country codes (alpha-2, alpha-3, and numeric), visit the ISO 3166-1 page for Antarctica.
For geographical info about Antarctica, visit the Geonames page. It covers coordinates, elevation, administrative divisions, and nearby locations.