Area Code 2133 – Rio de Janeiro - RJ

Overview of Area Code 2133 in Rio de Janeiro

Area code 2133 is a geographic prefix within the Brazilian National Numbering Plan, specifically allocated to the city of Rio de Janeiro and its metropolitan region, in the state of Rio de Janeiro (RJ). This prefix is part of the larger area code 21, which serves the capital and surrounding municipalities. The 2133 prefix is used for fixed-line (PSTN) services, including traditional landlines and some VoIP-based fixed services that are assigned geographic numbers.

Geographic Coverage and Administration

The 2133 code covers the central and southern zones of Rio de Janeiro, including neighborhoods such as Centro, Copacabana, Ipanema, and Botafogo, as well as parts of the Baixada Fluminense region. The administrative jurisdiction falls under the Brazilian National Telecommunications Agency (ANATEL), which regulates the allocation of numbering resources. Rio de Janeiro is the second-largest city in Brazil and a major economic hub, so this prefix is widely used by businesses and residents.

Dialing Formats and Instructions

For local calls within the Rio de Janeiro metropolitan area (same area code 21), dial only the eight-digit subscriber number, which includes the 2133 prefix followed by four additional digits. For example, to call a local number, you would dial 2133-XXXX (where XXXX is the subscriber's line number).

For national long-distance calls from other Brazilian cities, you must dial the operator selection code (e.g., 0 + operator code, such as 15 for Vivo, 21 for Embratel, etc.), followed by the area code 21 and the eight-digit number: 0 XX 21 2133-XXXX. For international calls to a 2133 number, dial your country's exit code, then Brazil's country code 55, then the area code 21, and finally the eight-digit number: +55 21 2133-XXXX. Note that the leading '0' of the trunk prefix is not dialed when calling from abroad.

Overlay and Numbering Considerations

Currently, there is no overlay code for the 21 area; the region uses a single area code. However, due to increasing demand, ANATEL has implemented number pooling and conservation measures. The 2133 prefix is not a separate area code but a central office code within the 21 area, so it does not affect local dialing rules. Callers should always include the area code when dialing from outside the region.

Practical Examples

• Local call (within Rio): 2133-XXXX
• National call (from São Paulo): 0 15 21 2133-XXXX
• International call (from the US): 011 55 21 2133-XXXX
• International call (from Europe): 00 55 21 2133-XXXX

Understanding these dialing patterns ensures seamless connectivity for both residents and international callers.