This topic describes the term region in Alibaba Cloud and all regions where IoT Platform is available. This topic also describes how to select a region.
Term
Regions are geographical locations where Alibaba Cloud data centers are deployed. Regions are defined based on the cities where data centers reside. For example, the China (Shanghai) region indicates that the data center is located in Shanghai, China.
Select a region
| Factor | Description |
|---|---|
| Geographical location | A region that is closer to the geographical location of your users provides lower latency and higher access speed. We recommend that you select a region based on your business requirements on network latency. |
| Communication between cloud services over an internal network | Important If you have purchased a cloud network service to connect cloud services, ignore this item.
|
| Access from Elastic Compute Service (ECS) instances located inside greater China to ECS instances outside greater China | ECS instances located inside greater China may experience high network latency and even packet loss when they access ECS instances located outside greater China by using public IP addresses. We recommend that you deploy ECS instances in the same region if they require mutual access. |
| Resource price | You can select a region based on your budget. The prices of resources may vary based on regions. For more information, see the product page or resource buy page. |
Regions
Regions are defined based on the cities where data centers reside. You cannot change the region of a resource after the resource is created. The following table describes the mappings between the supported regions, the cities where the data centers reside, and the region IDs.
- In the Chinese mainland
Region City Region ID China (Shanghai) Shanghai cn-shanghai - Outside the Chinese mainland
Country City Region ID Singapore Singapore ap-southeast-1 Japan Tokyo ap-northeast-1 US Silicon Valley us-west-1 US Virginia us-east-1 Germany Frankfurt eu-central-1