NA — Namibia

Namibia is a sparsely populated country in Southern Africa, home to the world's oldest desert (the Namib) and dramatic landscapes including the Skeleton Coast, Etosha National Park, and the Sossusvlei dunes. Windhoek, the capital, is centrally located at 1,700 meters elevation. The Namibian Dollar (NAD) is pegged at par with the South African Rand, and both currencies are legal tender. For developers, the NA country code is notable because it can collide with 'N/A' (not applicable) in data processing — a common source of bugs where Namibia entries get incorrectly filtered out as null or missing values. The .na domain and +264 calling code serve Namibia. The en-NA locale handles Namibian English. Namibia's NA code collision with 'N/A' is a well-known data science issue that has caused Namibia to disappear from datasets and dropdown menus, making it an important test case for data validation logic.