Antarctica Country Code

How do I dial mobiles vs landlines in Antarctica

Antarctica isn’t in the ITU list as a standalone calling destination—stations use the code of their sponsoring nation. The Australian Antarctic Division assigns +672 1x access codes (10 Davis, 11 Mawson, 12 Casey) followed by a 4-digit extension. From Australia you’d dial 0011 672 {station-code} {extension}; from other countries, use your own exit code instead of 0011. There’s no trunk “0” for these numbers. 

U.S. stations (McMurdo, Amundsen–Scott South Pole, Palmer) are typically reached via U.S. (+1) gateway numbers—calls from the ice are routed through Denver, and public guidance references 303/720 area codes. New Zealand’s Scott Base uses +64 numbers provisioned by NZ telecoms, while Chilean bases on King George Island (e.g., Frei / Villa Las Estrellas) use +56 and even have Entel 5G service on-site. For field parties and ships, satellite is common: +870 (Inmarsat) and +8816/8817 (Iridium).