The whole concept of geographical segmentation is built right into the GDS systems (Global Distribution System). Agents are all designated by an identifier that

The whole concept of geographical segmentation is built right into the GDS systems (Global Distribution System). Agents are all designated by an identifier that ties them to a particular geographical point of sale. That's why the above works, many TLDs of a company are actually tied to an agent point of sale in that country. Works on all GDS content - car rentals, hotels and so forth.