Country code +86 is the People's Republic of China, and the second 6 is the first digit of the Chinese area code. Numbers beginning with +86 6 were previously reserved for Taiwan (pending reunification of China), but are now assigned to some areas in Shandong, Guangdong, and Yunnan provinces.
In North America (USA, Canada, etc.), area code 866 is used for toll-free calls. It is a non-geographic code, meaning the person on the other end of the call could be located anywhere in the world. There is no way to determine the location of a particular 866 number. Although toll-free calls do not incur any long distance charges, and are free from landline phones and pay phones, airtime charges will usually still apply for calls from mobile phones (cell phones). The toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
Telephone country code +1 is North America, including the USA, Canada, and some Caribbean and nearby islands. Area code +1 866 is used for toll-free numbers within North America. These numbers may or may not be reachable from outside North America, and will generally incur international call charges if the call does complete.
Area code 866 is toll-free numbers within North America (USA, Canada, etc.). It is unlikely that a correctional institution would offer a toll-free number.
In North America, 800, 888, 877, 866, and 855 are toll-free area codes.
In North America (USA, Canada, etc.), area code 847 is an ordinary geographic area code for the suburbs north of Chicago. It is not a toll-free code. Toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
In North America (USA, Canada, etc.), area code 714 is an ordinary geographic area code for part of Orange County, California, just south of Los Angeles. It is not a toll-free code. Toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
In North America (USA, Canada, etc.), area code 949 is an ordinary geographic area code for the southern half of Orange County, California, including Aliso Viejo. It is not toll-free. The toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
In North America (USA, Canada, etc.), area code 512 is an ordinary geographic area code for Austin, Texas, and surrounding areas. It is not toll-free. The toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
North American area code 866 is a toll-free number. Other toll-free codes are 800, 888, 877, and 855.
In North America (USA, Canada, etc.), area code 218 is an ordinary geographic area code for part of Minnesota. It is not a toll-free code. The toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
North American area code 800 is a special toll-free area code, along with 888, 877, 866, and 855, and in future 844, 833, and 822. You cannot tell anything about where the number is located; in fact, it could even route to a call center outside North America (USA, Canada, etc.; country code +1).
In North America (USA, Canada, etc.), area code 609 is an ordinary geographic area code for part of southern New Jersey, including Trenton, Princeton, and Atlantic City. It is not toll-free. The toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
In North America (USA, Canada, etc.), area code 847 is an ordinary geographic area code for the suburbs north of Chicago. It is not a toll-free code. Toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
In North America (USA, Canada, etc.), area code 972 is an ordinary geographic area code for Dallas, Texas. It is not toll-free. The toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.