Telephone numbers in Mexico are regulated by the Federal Telecommunications Institute, an independent government agency of Mexico. The agency published the ''Fundamental Technical Plan for Numbering'' (''Plan Técnico Fundamental de Numeración'') on May 11, 2018. The plan establishes a uniform ten-digit telephone number format. It took effect on August 3, 2019.

Telephone number format

All telephone numbers in Mexico have ten digits. The size includes a one-digit

area code A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, rea ...

prefix that identifies eight principal geographic region of the country. The national number was formed by prefixing the previously existing local number format with an area code. All ten digits must be dialed, even for local calls.

Dialing prefixes

Since August 3, 2019, only the following dialing prefixes are available for use within Mexico:

Dialing into Mexico

Destinations in Mexico are dialed from foreign location by dialing the foreign country's

International access code The following is a list of different International call prefix, international call prefixes that need to be dialled when placing an international call, international telephone call from different countries. Countries by international prefix C ...

(''011'' in US, ''00'' in many other countries), the country code ''52'', and the ten-digit national telephone number of the destination.

History

Until August 3, 2019, telephone numbers in Mexico consisted of ten digits with either two-digit area codes (for Mexico City,

Monterrey Monterrey ( , ) is the capital and largest city of the northeastern state of Nuevo León, Mexico, and the third largest city in Mexico behind Guadalajara and Mexico City. Located at the foothills of the Sierra Madre Oriental, the city is anchor ...

, and

Guadalajara Guadalajara ( , ) is a metropolis in western Mexico and the capital of the list of states of Mexico, state of Jalisco. According to the 2020 census, the city has a population of 1,385,629 people, making it the 7th largest city by population in Me ...

and their respective metropolitan areas) or three-digit area codes for the rest of the country. New area codes were assigned in the overlay format to address number exhaustion: in 2017, Toluca and

Puebla Puebla ( en, colony, settlement), officially Free and Sovereign State of Puebla ( es, Estado Libre y Soberano de Puebla), is one of the 32 states which comprise the Federal Entities of Mexico. It is divided into 217 municipalities and its cap ...

and in 2018, Leon, Mexico City, and Tijuana. Major cities and metropolitan areas have the following codes:

Dialing prefixes prior to 2019

Other service numbers

References

External links

ITU allocations list
Mexico Telephone numbers Telephone numbers {{Telephonenumber-stub