Area Code 729 – Estado de Mexico
The phone area code for Estado de Mexico is 729 (international format +52729). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 729
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Estado de Mexico
Geographic Coverage and Administrative Jurisdiction
Area code 729 is a geographic National Destination Code (NDC) assigned to the State of Mexico (Estado de Mexico), one of the 32 federal entities of Mexico. This code serves a portion of the state that lies outside the Mexico City metropolitan area, primarily covering municipalities in the eastern and northeastern part of the state. Key cities and towns within this code include Texcoco, Chimalhuacán, Chicoloapan, Los Reyes Acaquilpan, and Ixtapaluca. The region is characterized by a mix of urban and semi-rural communities, many of which are part of the greater Mexico City conurbation but are administratively separate.
Dialing Formats and Caller Instructions
For international callers, the correct format is +52 729 XXX XXXX, where +52 is the Mexico country code, 729 is the area code, and the subscriber number is eight digits long. For example, a local number in Texcoco would be dialed as +52 729 123 4567 from abroad. When calling from within Mexico but outside the 729 area, you must dial the long-distance prefix 01 followed by the area code and number: 01 729 123 4567. For local calls within the same area code, only the eight-digit subscriber number is required, without the area code or any prefix.
Overlay and Numbering Considerations
Currently, area code 729 does not have an overlay; it is the sole NDC for its geographic region. However, due to the continuous growth of telecommunications services in the State of Mexico, the Federal Telecommunications Institute (IFT) has implemented number pooling and conservation measures to ensure sufficient numbering resources. Subscribers in this area may have their numbers migrated or reassigned only under official numbering plan changes, which are always announced well in advance.
Services and Usage
Numbers under 729 are used for fixed-line services, including PSTN and VoIP-based local telephony, as well as for some mobile services that have been ported to this geographic code. It is important to note that while mobile numbers in Mexico typically use non-geographic codes (e.g., 55, 81, 33), a number with 729 is inherently geographic, and its tariff structure may differ from mobile numbers. Businesses operating in this region often use 729 numbers to establish a local presence, and callers should be aware that charges for calls to 729 numbers are based on the destination's geographic location.