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Who is PSI-BR?
PSI-BR is a Brazilian internet infrastructure resource that supports internet service providers in connecting to and operating within the national internet backbone ecosystem.
- Internet service provider support for Brazilian network operators
- Connectivity and interconnection guidance within the national internet backbone
- Technical and operational resources for access and transit providers
- Coordination with Brazil's national internet governance and registry functions
- Information aimed at network engineers and provider operations teams
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PSI-BR is positioned as a reference point for Internet service providers, often called provedores, that serve end users and businesses across Brazil. Its offerings center on the technical and operational conditions that allow smaller and regional providers to participate in the national internet infrastructure. In enterprise and carrier environments, this type of resource is typically consulted during network design, peering decisions, and capacity planning for access networks.
The technologies associated with this area include IP routing based on the Border Gateway Protocol, Internet exchange point participation, and domain name system operations. Providers commonly rely on these protocols to exchange routes, reduce latency for domestic traffic, and keep transit costs predictable. Fixed broadband access, fiber-based last-mile deployments, and fixed wireless architectures form the access layer that these providers operate on top of the backbone.
Comparable solution categories include internet exchange coordination services, national network information centers, and regional network operator associations. Their common purpose is to provide shared technical guidance, interconnection frameworks, and operational best practices. The business significance for providers lies in reducing the cost and complexity of operating an autonomous network and in improving the quality of domestic internet routing.
Within the directory landscape, PSI-BR aligns with telecommunication and service provider network infrastructure, specifically the segment covering fixed broadband access and IP transport for regional operators. Its relevance is tied to current network modernization efforts, including fiber expansion, routing security practices, and capacity growth across Brazilian access networks.
Our description of PSI-BR. Updated October 2026.
