Cloud Service Availability by Region — Feature Coverage Guide

Service Availability Across Cloud Regions

Not all cloud services are available in every region. New services typically launch first in major regions (US East, Europe, Tokyo) and gradually expand to others over months or years.

Service Tier Classification

Tier	Services	Typical Region Coverage
Core	Compute, Storage, Networking	All regions
Standard	Database, Analytics	80%+ of regions
Advanced	AI/ML, IoT, Media	40-60% of regions
Specialty	Ground Station, Quantum	5-15% of regions

Compute and Storage

All regions across all three providers offer basic compute (EC2, Virtual Machines, Compute Engine) and object storage (S3, Blob Storage, Cloud Storage). Block storage and managed Kubernetes are also universally available.

Database Services

Managed relational databases (RDS, Azure SQL, Cloud SQL) are available in nearly all regions. However, specialty databases vary:

• AWS DynamoDB Global Tables: Available in all standard regions
• Azure Cosmos DB: Available in all Azure regions with AZs
• GCP Spanner: Available in a subset of GCP regions

AI/ML Services

AI and machine learning services have the most uneven distribution:

• AWS SageMaker: Available in ~20 regions
• Azure OpenAI Service: Initially limited to 5-6 regions
• GCP Vertex AI: Available in ~15 regions

Major regions guaranteed to have full AI/ML service coverage:

• US East (Virginia/Ohio)
• Europe (Ireland/Frankfurt)
• Asia Pacific (Tokyo)

IoT Services

IoT services are concentrated in the most popular regions:

• AWS IoT Core: ~15 regions
• Azure IoT Hub: Most Azure regions
• GCP IoT Core: Deprecated — use Pub/Sub instead

How to Check Current Availability

Each provider maintains an official service availability page:

• AWS: "Region Table" in the AWS documentation
• Azure: "Products available by region" page
• GCP: "Cloud locations" page

These pages are the definitive reference and are updated as services expand to new regions.