Where is area code 1866?

Answer 1

In North America (country code +1 = USA, Canada, etc.), 1-866 is a toll-free number, along with 1-800, 1-888, 1-877, and 1-855.

In the UK, area code +44 1866 (or 01866 in domestic format) is Kilchrenan, Scotland.

(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.)

Answer 2

An international telephone number beginning with +1 466 is an invalid number in North America (country code +1, includes USA, Canada, and certain island nations and territories, mostly in the Caribbean).

Various countries might have domestic telephone area codes like 1466, but it is impossible to say without knowing which country you're asking about.

Answer 3

Telephone country code +1 is North America, including the USA, Canada, and 18 assorted islands in or near the Caribbean. 86 is the first two digits of a three-digit area code; you need the next digit to narrow down the location.

(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 Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)