Area Code 287 – Oaxaca
The phone area code for Oaxaca is 287 (international format +52287). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 287
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Oaxaca
Overview of Area Code 287
Area code 287 is a geographic numbering plan area within the Mexican telecommunications network, specifically assigned to the state of Oaxaca. It serves the central-northern region of the state, including the city of Oaxaca de Juárez (the state capital) and its surrounding metropolitan area. The code is part of the national numbering plan administered by the Instituto Federal de Telecomunicaciones (IFT) under the ITU-T E.164 standard.
Geographic Coverage and Jurisdiction
The 287 area code covers a significant portion of the Valles Centrales region of Oaxaca. Key municipalities and localities within this code include Oaxaca de Juárez, Santa Cruz Xoxocotlán, San Antonio de la Cal, Santa Lucía del Camino, and Tlalixtac de Cabrera. This area is the political, economic, and cultural heart of the state, hosting major government institutions, commercial centers, and educational facilities such as the Benito Juárez Autonomous University of Oaxaca.
Dialing Formats and Procedures
For local calls within the 287 area code, users must dial the 3-digit area code followed by the 7-digit local number, even for calls within the same city. This is a mandatory requirement under Mexico's dialing plan, which eliminated the previous distinction between local and long-distance dialing. For example, to call a landline in Oaxaca de Juárez with the local number 123-4567, a local caller would dial: 287 123 4567.
For international callers, the format is: +52 287 123 4567. The country code for Mexico is +52, and the leading '0' is not used when dialing from abroad. When calling from a mobile phone within Mexico, the same format applies, and it is not necessary to add any additional prefixes.
Overlay and Numbering Considerations
Currently, area code 287 does not have an overlay code, meaning it is the sole area code for this geographic region. However, the IFT has implemented number portability, allowing users to retain their numbers when switching service providers. It is important to note that while 287 is a geographic code, mobile numbers in Mexico are non-geographic and begin with a '1' or '2' after the country code (e.g., +52 1 287...). Landlines, on the other hand, use the 287 prefix directly after the country code.
Caller Instructions
For local callers within Mexico, always include the area code, even for calls to the same city. For international callers, use the plus sign (+) followed by the country code, area code, and local number. Ensure you drop any leading zeros that might appear in domestic formats. This ensures proper routing through the PSTN or VoIP networks.