Many cell phone numbers in Mexico have an 044 prefix. This prefix is only to be used when calling the number locally. When calling from a long distance location, the 044 is omitted. When calling the number internationally, a "1" is added after the country code
For example, for the Puerto Escondido cell phone number 044 (954) 588-2222: To call this number from Puerto Escondido, dial 044-954-588-2222. To call this number from the United States or Canada, dial 011-52-1-954-588-2222.