Area Code 231 – Teteles/Teziutlan, PUE
The phone area code for Teteles/Teziutlan, PUE is 231 (international format +52231). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 231
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Teteles/Teziutlan, PUE
Overview
The +52 231 area code is a geographic National Destination Code (NDC) assigned to the region encompassing Teteles de Avila Castillo and Teziutlán, located in the state of Puebla (PUE), Mexico. This code is part of the North American Numbering Plan (NANP) but is administered under Mexico's E.164 country code +52. The area code serves a mix of urban and rural communities in the Sierra Norte de Puebla region, characterized by its mountainous terrain and significant commercial and agricultural activity.
Geographic Coverage and Jurisdiction
The 231 area code covers a specific territorial demarcation within Puebla state, including municipalities such as Teziutlán, Teteles de Avila Castillo, Chignautla, and nearby localities. Teziutlán is the largest city in the area and serves as a commercial hub, while Teteles is a smaller town known for its traditional crafts. The region is governed by the Mexican Federal Telecommunications Institute (IFT), which allocates geographic area codes based on population density and demand.
Dialing Formats and Instructions
For local callers within the 231 area code, the standard local dialing format is the 7-digit subscriber number (e.g., 123 4567). However, when calling from another area code within Mexico, you must dial the long-distance prefix 01, followed by the area code 231 and the 7-digit number: 01 231 123 4567. For international callers, the format is +52 231 123 4567 (or 011 52 231 123 4567 from the US/Canada).
It is important to note that Mexico has implemented an overlay and number portability system, but the 231 area code remains geographically specific. Callers should always include the area code when dialing from mobile phones, as mobile numbers are non-geographic and require the full 10-digit number with the appropriate NDC.
Caller Instructions
- Local callers (within 231): Dial the 7-digit subscriber number directly.
- National callers (outside 231): Dial 01 + 231 + 7-digit number.
- International callers: Dial your country's exit code (e.g., 011 from US) + 52 + 231 + 7-digit number.
This area code is used for fixed-line PSTN and VoIP services. For emergency services, dial 911 as in the rest of Mexico.