The total World population of addax in is likely to be less than 500. The Algerian population in 1967 was 50 at most and by 1996 was extinct. In Chad the addax population in 1964 was 1400 at most falling to fewer than 200 in 1996. In Mauritania the population in 1996 was less than 50 from a population of 5000 in 1966.
The addax is considered as "Endangered" by the IUCN and is listed by CITES as "Appendix 1".