Telephone numbers in Mexico are regulated by the

Federal Telecommunications Institute The Federal Telecommunications Institute ( Spanish: ''Instituto Federal de Telecomunicaciones''; abbreviated as IFT and incorrectly referred to as IFETEL) is an independent government agency of Mexico charged with the regulation of telecommunicat ...

, an independent government agency of

Mexico Mexico (Spanish language, Spanish: México), officially the United Mexican States, is a List of sovereign states, country in the southern portion of North America. It is borders of Mexico, bordered to the north by the United States; to the so ...

. 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, r ...

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

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 prefixes that need to be dialled when placing an international telephone call from different countries. Countries by international prefix Countries using optional carrier selection code ...

(''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 Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley o ...

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 ancho ...

, and

Guadalajara Guadalajara ( , ) is a metropolis in western Mexico and the capital of the 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 Mexico, while the Guadalaj ...

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 Toluca , officially Toluca de Lerdo , is the state capital of the State of Mexico as well as the seat of the Municipality of Toluca. With a population of 910,608 as of the 2020 census, Toluca is the fifth most populous city in Mexico. The city ...

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 Leon, Léon (French) or León (Spanish) may refer to: Places Europe * León, Spain, capital city of the Province of León * Province of León, Spain * Kingdom of León, an independent state in the Iberian Peninsula from 910 to 1230 and again f ...

, and

Tijuana Tijuana ( ,"Tijuana"
(US) and < ...

. Major cities and metropolitan areas have the following codes:

Dialing prefixes prior to 2019

Other service numbers

References

External links

ITU allocations list

Telephone numbers A telephone number is a sequence of digits assigned to a landline telephone subscriber station connected to a telephone line or to a wireless electronic telephony device, such as a radio telephone or a mobile telephone, or to other devices f ...

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