FIFA
In total, FIFA recognises 211 national associations and their associated men's national teams as well as 129 women's national teams; see the list of national football teams and their respective country codes. FIFA has more member states than the UN as FIFA recognises 23 non-sovereign entities as distinct nations, such as the four Home Nations within the United Kingdom and politically disputed territories such as Palestine.
FIFA Beach Soccer World Cup
Only 8 of the 45 countries have failed to appear in a FIFA controlled World Cup. Peru (5) have appeared in the most competitions without any one of those being under FIFA's control. Meanwhile, Iran (7) have appeared in the most FIFA sanctioned tournaments without having ever appeared in the old World Championships before 2005.