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Since the 1960s, the Bell System had already established technical infrastructure to include Mexico in the NANP routing system, and continued to maintain special dialing arrangement using NANP area codes 903 (northwest Mexico) and 905 (Mexico City) from the US into Mexico, [6] because of high community interest into the 1980s. Use of the area ...
Country code: 52; International call prefix: 00; Trunk Prefix: none; The telecommunication services of Mexico are provided by a division of the telephone numbering plan into groups of area codes for the following regions: [1]
Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone number dialing prefixes for reaching subscribers in foreign countries or areas via international telecommunication networks.
The 0–99 range of area codes in Mexico serve the country's three largest cities. Area code 33 serves the Metropolitan area of Guadalajara, Jalisco, area code 55 and area code 56 serve the Metropolitan area of Mexico City (Mexico State and the CDMX), and area code 81 serves the Metropolitan area of Monterrey, Nuevo León.
The 900–999 range of area codes in Mexico is reserved for the states of Campeche, Chiapas, Oaxaca, Puebla, Quintana Roo, Tabasco, Veracruz, and Yucatán. The country code of Mexico is +52. [1] For other areas, see Area codes in Mexico by code.
Area code dialing is optional in most geographical area codes, except Moscow (area codes 495, 498, 499); it is mandatory for non-geographical area codes. E.123 international and Microsoft formats are used for writing local phone numbers as well; international prefix and country code 7 are replaced with trunk code 8 (or 8~CC ) when dialing a ...
An additional digit has been added to the code of every carrier. Making a single code per carrier, after each carrier had to have multiple codes. And making the NSN 10 digits after it was 9. Dialing format inside Egypt is 01X XXXX XXXX, International format is 20 1X XXXX XXXX; 11: Etisalat: 12: Orange Egypt: 15: WE Egypt El Salvador +503: 6: 8
For instance a home call sign of WA1ZZZ becomes XE1/WA1ZZZ. Further, those who operate outside of the XE1 area would add an identifying suffix – for instance XE1/WA1ZZZ/XE2 to operate in northern Mexico. [3] The call sign must be given always as enumerated on the permit, and the operator's location must be stated in Spanish.