Area Code 841 – Tamaulipas
The phone area code for Tamaulipas is 841 (international format +52841). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 841
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Tamaulipas
Geographic Coverage and Jurisdiction
The area code 841 is a geographic National Destination Code (NDC) assigned within the Mexican numbering plan, serving the state of Tamaulipas. Specifically, it covers the northern and central municipalities of the state, including key localities such as Reynosa, Río Bravo, and surrounding communities. This code is administered under the jurisdiction of the Instituto Federal de Telecomunicaciones (IFT), Mexico's telecommunications regulatory authority.
Dialing Formats and Procedures
For callers within Mexico, the domestic dialing format requires the long-distance prefix 01 followed by the area code and the local seven-digit number. For example, to call a landline in Reynosa from Mexico City, you would dial: 01 841 XXX XXXX.
For international callers, the E.164 format is used: the Mexican country code +52, followed by the area code and the local number, without the domestic long-distance prefix. Thus, a caller from the United States or Canada would dial: +52 841 XXX XXXX. It is important to note that when dialing from abroad, the leading 01 is omitted.
Local Dialing and Overlay Considerations
Within the 841 area code region, local calls between landlines in the same area code can typically be dialed using only the seven-digit local number. However, as with many Mexican area codes, there is no overlay in 841; the code serves a distinct geographic area. Users should always confirm with their service provider if any additional digits are required for local calls, especially in areas near the U.S.-Mexico border where cross-border calling patterns may differ.
Caller Instructions
- Local callers (within 841): Dial the 7-digit local number directly.
- National long-distance callers (outside 841): Dial 01 841 followed by the 7-digit number.
- International callers: Dial +52 841 followed by the 7-digit number.
Administrative and Technical Notes
The 841 area code is part of the North American Numbering Plan's neighboring region but operates under Mexico's own numbering scheme. It is used exclusively for fixed-line (PSTN) services, including residential and business lines. Mobile numbers in Tamaulipas are assigned distinct mobile codes (e.g., 899) and are not part of the 841 geographic code. As of the latest IFT updates, there are no plans for an overlay or area code split in the near term, but users should monitor official announcements for any changes.