what is the format of a phone number from west africa?

Answer 1

It depends on the country. For example, a phone number in Senegal looks like:

+221 823.61.23

Dialed from the states, that would be 011-221-823-6123
221 is the country code for Senegal, 823 is a city code and 6123 is the local number.

A number from the Ivory Coast looks like this:

[phone]

Notice the city code has one less digit than in Senegal.