What is the AWS Global Infrastructure?
The AWS Global Infrastructure is the worldwide physical network of data centers, edge sites, and network links that delivers AWS services.
Regions (33+) — geographic clusters of data centers.
Availability Zones (100+) — isolated data centers within a Region (3+ per region typical).
Edge Locations (600+) — CloudFront / Global Accelerator PoPs.
Regional Edge Caches — mid-tier caches between edge and origin.
Local Zones — Region extensions in metro areas for ultra-low-latency workloads.
Wavelength Zones — embedded in 5G provider networks for mobile-edge compute.
Outposts — AWS hardware on-prem for hybrid use cases.
Connected by AWS-owned private fiber backbone — single-digit-ms latency between AZs and Region-to-Region paths optimized for throughput.
Memorize the hierarchy — Regions → AZs → Edge Locations — and add Local Zones / Wavelength / Outposts to show you know hybrid and edge options.