How to call Trinidad and Tobago from the USA or from Canada:

dial 1 + 868 + local phone number

Calling from another country?

The time in Trinidad and Tobago is now 08:25:38pm

Calling Trinidad and Tobago from the United States explained:

1 - Country Code for Trinidad and Tobago
868 - area code within the NANP
local phone number - 7 digits
US to Trinidad and Tobago international dialing format: 1 868 ??? ????
this country is part of the North American Numbering Plan - NANP (calling it works like a US state to state call)

Phone Books:

Yello Trinidad & Tobago - White and Yellow Pages