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The Mexico country code  52 will allow you to call Mexico from another country. Mexico telephone code 52 is dialed after the IDD. Mexico international dialing 52 is followed by an area code. The Mexico area code table below shows the various city codes for Mexico. Mexico country codes are followed by these area codes. With the complete Mexico dialing code, you can make your international call.
The 044 is an access code used within Mexico only. I have verified that this format works for both Verizon and TMobile when sending from the US: 011 52 1 999 9786 543. In both cases the message was received in Mexico. If texting from the US or Canada, add: 011 52 1 to the beginning of the number. <br /><br /> If texting from most other countries, add 00 52 1 to the beginning of the number. <br /><br /> The extra 1 is required after the 52. It is an extra digit required for calling or texting to Mexican cell phones. --011 (international access code) from the US or Canada. --From most other countries, use 00. --Area code ( they could be two or three numbers, for instance, Mexico city code is 55, Cancun is 998, Acapulco is 744, etc.