I propose a division of the African continent which reflects a little their common official languages and former colonizators. The map is shown as follows:

Western Africa (W.A.) can be occupied by an airline based in any of the countries in this area; then, it can be shared by Algerian, Tunisian and Senegalese airlines, airlines that usually establish in game worlds;
Southern Africa (S.A.) can be occupied by an airline established in any countries within this area (for example, South Africa, Ethiopia);
Portuguese area (P) features all former Portuguese colonies. For this area I propose that any airline based in Portugal can establish in this area (thus, if they based in some of these countries before the 60s, they wouldn't lose their bases when these countries become independent). Also, airlines headquartered in these countries sould also base in Portugal;
French area (F) features Madagascar, Mauritius, Reunion and other former French colonies in the Indian Ocean. Rules would be similar to Portuguese area's;
Egyptian area (E) features Egypt and Sudan (North and South). An airline based in one of these countries could base anywhere within this area.
For South and Central America I propose the following:
- Bolivia, Paraguay and Uruguay can be based by any airlines headquartered in their neighbor countries, as well as Paraguayan, Bolivian and Uruguayan airlines can base in any of their neighbors (except Brazil, Argentina and Chile);
- Guyana can be based by an airline in Britain or any former British island in the Caribbean; Suriname can be based by an airline in Netherlands and any former Dutch island in the Caribbean; French Guyana can be based by an airline in France or any former French island in the Caribbean.
- The Central America could be made as one block, free to be explored by any airline established in one of those countries - and maybe even by a Mexican airline, too;
- Haiti could be based by a Dominican airline;
- Cuba could be based by Soviet, Chinese and Venezuelan airlines!
