How to call Grenada from the USA or from Canada:

dial 1 + 473 + local phone number

Calling from another country?

The time in Grenada is now 06:29:55pm

Calling Grenada from the United States explained:

1 - Country Code for Grenada
473 - area code within the NANP
local phone number - 7 digits
US to Grenada international dialing format: 1 473 ??? ????
this country is part of the North American Numbering Plan - NANP (calling it works like a US state to state call)

Phone Books:

Yello Grenada - White and Yellow Pages