67 ANSPs world-wide are members of CANSO. They handle more than 85 % of world air traffic. CANSO is also in regular contact with those ANSPs not yet members of the organization but which have recognized the value of membership.
CANSO publishes the ATM Report & Directory every year with the aim of providing the world’s most comprehensive source of information on ANSPs.
You can download your free copy of the directory here.