The 2012 Africa Cup of Nations losing finalists began their current leadership in Africa in June 2011 and have stayed ahead of the chasing pack led by Ghana - who have been number two since November last year - since.
Inspired by the legendary Didier Drogba, Cote d'Ivoire won a home World Cup qualifier against Tanzania, and drew away to Morocco in the same series last month.
The Wild Cats moved up 20 places to 73rd in the world and 16th on the continent, while the biggest droppers were The Gambia, down 20 places to 128 in the global rankings and 40th in Africa.
Nigeria continued their climb up the table, moving two places to 58th and returning to the top ten in Africa after wins over Namibia and Rwanda and a draw with Malawi in continental qualifiers in June.
Meanwhile European and world champions Spain maintained their lead overall, while Germany took second spot from Uruguay who are now third.
Brazil dropped six places to 11th in the world, their lowest since the world body introduced the rankings.
- Latest FIFA African Ranking