AWS currently operates data centers in 14 regions across the globe. More regions are being frequently opened across the globe (https://aws.amazon.com/about-aws/global-infrastructure/). Most AWS services require you to choose a region of operation. The rule of thumb is to choose the region that is closest to you or the end-users accessing your resources.
Choosing a region may depend on other factors, which may vary across regions, including:
- Latency
- Pricing
- Security and compliance rules
- Availability of the service
- SLA–Service Level Agreements
- Use of renewable energy. At the time of writing, AWS offers two carbon neutral regions (https://aws.amazon.com/about-aws/sustainability/) and is actively creating others .
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