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)
- TNTYP - official White and Yellow Pages