How to Call to Mexico from the USA

To call Mexico from the U.S., just follow these simple dialing directions:

• First dial 011 - the U.S. exit code.
• Next dial 52 - the Mexico country code.
• Then the area code - 2/3 digits.
• Finally, the phone number - 7/8 digits.

• International calls to mobile phones in Mexico are dialed like regular international calls. So to call a Mexico City mobile phone from the U.S., dial 011 + 52 + 1 + area code + number
  

More info on calling Mexico

Here‘s a list of major area codes in Mexico, by city: