What are the numbers I have to dail to call the United States from Italy? What is the country code etc...?

If you're calling from a military or gov't phone dial 99001, area code, then number

You need to dial 001-1- (area code) and phone number.

001+area code + 7 digit numbers total 13 numbers

i am not sure try calling the operator

It depends on where you are calling to. Use the following link to look up the area code for that location. Cities in every state will vary by area code. For instance, all US numbers from out of town follow the same format 1 - xxx (area code) - xxx-xxx (the 7-digit phone number) http://www.infoplease.com/ipa/A0877682.html

the international dialling code for the states is 001 or if ya calling from a mobile fone its +1

Try http://www.411.com Good Luck