A dead language also known as extinct language is a language that no longer have living native speakers. Many languages have gone into extinction. Here is a brief information on the number of dead languages in each continent.
Africa: 52 dead languages. Sudan and Nigeria have the highest number 10 and 8 respectively.
Asia: 109 dead languages. China, India, Central Asia and Siberia have the highest numbers.
Central America and Caribbean: 10 dead languages. Nicaragua has the highest number (3).
Europe: 143 dead languages. Italy, Russia, Northern and Central Europe and British Isles have the highest numbers.
North America: 109 dead languages. United states has the highest number of dead languages.
South America : 179 dead languages. Colombia, Brazil, Peru, Argentina and Ecuador have the highest numbers.
This sums up to a total of 602 dead languages all over the world.