No actually it'd be:
From the US: 011 33 1 431XXXX8
The 011 is to get outside of the US and Canada. 33 is the country code for France. 1 is the code for Parisian area and the following 8 digits are the number. Someone else in Paris would have different 8 digits at th end. Edit: Unless it were a cell phone number and then it's preceded by a 6 and not a 1 (or 2, or 3, or 4 or 5).
00 is used for international calls from outside of the US, like Europe.
From the US: 011 33 1 431XXXX8
The 011 is to get outside of the US and Canada. 33 is the country code for France. 1 is the code for Parisian area and the following 8 digits are the number. Someone else in Paris would have different 8 digits at th end. Edit: Unless it were a cell phone number and then it's preceded by a 6 and not a 1 (or 2, or 3, or 4 or 5).
00 is used for international calls from outside of the US, like Europe.