How do you know that phone number 164666884764 belongs to which country?

To determine the country associated with the phone number 164666884764, you can examine the country code, which is the first few digits of the number. In this case, the "+1" prefix indicates that the number is from the United States or Canada, as both countries share this country code. Further analysis of the remaining digits may provide more specific information about the geographic area or service type.