Can you dial 1-866 from outside the us?

Answer 1

Yes, but whether it is possible may vary depending on the telephone company being used.

First of all, you may be able to dial a US-based toll-free 866 number toll-free from other countries in the North American Numbering Plan, including Canada and certain Caribbean/nearby islands. If the call goes through, it will be toll-free. However, the owner of each individual toll-free number can choose to accept calls from only certain parts of North America, including countries, states, provinces, cities, or even neighborhoods.

From outside North America, you may be able to dial a North American toll-free number by treating it as if it were an ordinary geographic telephone number in North America, with telephone country code +1. However, in most cases, international toll charges will apply if the call goes through. If the call fails, your best bet is to look on the web for a regular geographic telephone number for the company you are trying to contact.

Toll-free area codes in North America, as of 2014, are 800, 888, 877, 866, 855, and 844. Area codes 833 and 822 are reserved for future toll-free use.

(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)