What are toll-free numbers to the world?

Answer 1

A toll-free number is one where the person or company receiving the call pays the long-distance charges. (For calls from a mobile phone, in most cases, airtime charges will still apply.) Most countries have numbering ranges that are toll-free for domestic calls. For example, in North America (USA, Canada, etc.), area codes 800, 888, 877, 866, 855, and 844 are toll-free, with 833 and 822 reserved for future toll-free use. In many countries, 0800 is the domestic toll-free code. International telephone country code +800 is used for Universal International Freephone Numbers (UIFN), which are toll-free from any participating country, provided the owner of that particular UIFN accepts calls from that particular country.