AT&T Business

AT&T's Global SIM Advanced (GSA) gives enterprises a carrier-grade eSIM/eUICC platform built on industry standards. The multi-IMSI architecture lets teams switch between carriers without physical hardware changes, essential for globally distributed operations. GSA handles remote provisioning, lifecycle management, and carrier policy switching through a unified control plane.

This fits organizations managing large IoT fleets, supply-chain devices, or regional team connectivity needs. Compared to consumer eSIM services, GSA emphasizes carrier-independent switching and policy enforcement, making it more suitable for enterprises that need programmatic control and cross-carrier redundancy.