Technical Design

ProXiFi operates a distributed fleet of 4G LTE USB modems interfacing SFF computers for cost-efficiency and scalability. Each modem provides a real mobile IP and is managed individually to ensure performance and reliability.

Modem Fleet

Each proxy endpoint is powered by a dedicated Huawei E3372 modem, connected via USB to a physical host, with its own IMEI, SIM card, and mobile IP. All traffic is routed directly through the cellular network.

Custom Software

We use custom software to manage load balancing, IP renewal, session tracking, and modem health checks. This allows us to automate and scale proxy provisioning across dozens or hundreds of modems.

Single-User Mode by Design

Every dedicated proxy is assigned to a single user. This prevents IP reputation issues and ensures consistent performance, making them ideal for high-volume use cases.

Coming Soon:

• Region targeting based on cell tower location

• Auto-rotation with time-based refresh

• Web-based dashboard for real-time monitoring and control