The following table lists the regions, corresponding cities, and Region IDs.
|Region||China North 1||China North 2||China North 3||China North 5||China East 1||China East 2||China South 1|
|Region||Hong Kong||Asia Pacific SE 1||Asia Pacific SE 2||Asia Pacific SE 3||Asia Pacific SE 5||Asia Pacific NE 1||Asia Pacific SOU 1||US West 1||US East 1||Germany 1||Middle East 1|
|City||Hong Kong||Singapore||Sydney||Kuala Lumpur||Jakarta||Tokyo||Mumbai||Silicon Valley||Virginia||Frankfurt||Dubai|
|Number of Zones||3||2||1||1||1||1||1||2||2||2||1|
Zones are physical areas with independent power grids and networks in one region. The network latency for ECS instances within the same zone is shorter.
Intranet communication can take place between ECS instances in different zones of the same region, and fault isolation can be performed between zones. Whether or not ECS instances can be deployed in the same zone depends on the requirements for disaster recovery capabilities and network latency.
- If your applications require high disaster recovery capabilities, we recommend that you deploy your ECS instances in different zones of the same region.
- If your applications require low network latency between instances, we recommend that you create your ECS instances in the same zone.
For the number of zones in each region, see the region tables.
Regions in mainland China include China East 1, China East 2, China North 1, China North 2, China North 3, China North 5, and China South 1.
They offer BGP backbone network lines covering all provinces and municipalities in mainland China and providing fast yet stable access within mainland China.
They are similar to each other in terms of infrastructure, BGP network quality, service quality, ECS operation, and configuration. In general cases, we recommend that you select a data center closest to your end users to have them gain quick access.
Alibaba Cloud’s international regions are data centers outside mainland China. They offer access at international bandwidth, targeting areas outside mainland China. Access to these regions from mainland China may experience high latency. Therefore, they are not recommended for access from mainland China.
The data center in Hong Kong offers access at international bandwidth, covering Hong Kong and Southeast Asia. If you have business operation in Hong Kong and Southeast Asia, you can select this region.
Asia Pacific SE 1
The data center in Asia Pacific SE 1 is provided by Alibaba Cloud’s partner, SingTel, a dominant operator in Southeast Asia. With highly reliable business expertise and maturity, the company is well positioned to serve users across the region. If you have business operation in Hong Kong and Southeast Asia, you can select this region.
Asia Pacific SE 2
The data center in Asia Pacific SE 2 is located in Sydney, Australia. If you have business operation in Australia, select the Asia Pacific SE 2 region.
Asia Pacific SE 3 and Asia Pacific SE 5
The data center in Asia Pacific SE 3 is located in Kuala Lumpur, Malaysia. The data center in Asia Pacific SE5 is located in Jakarta, Indonesia. They provide high speed and low latency services for users in Southeast Asia countries, including Malaysia, Singapore, Indonesia, Thailand, and their neighboring countries.
Asia Pacific NE 1
The data center in Asia Pacific NE 1 is located in Tokyo, Japan. If you have business operations in Japan, Northeast Asia, and South Korea, select the Asia Pacific NE 1 region.
North America and South America
US West 1
The data center in US West 1 is located in Silicon Valley. It is directly connected to the backbone networks of multiple American operators through BGP lines. In addition to the United States, this data center extends its reach to South America and Continental Europe. If you have business operation in America and Continental Europe, select this region.
US East 1
The data center in US East 1 is located in Virginia of the United States. If you have business operation in America and Continental Europe, select this region.
The data center in Germany 1 is located in Frankfurt. If you have business operation in Continental Europe, select the Germany 1 region.
Middle East 1
The data center in Middle East 1 is located in Dubai, United Arab Emirates. If you have business operations in Middle East, select the Middle East 1 region.
Intranet communication between Alibaba Cloud products that are not in the same region is not supported, which means:
- ECS instances in different regions cannot communicate with each other on the intranet.
- ECS instances and other products in different regions, such as ApsaraDB for RDS and OSS instances, cannot communicate with each other on the intranet.
- Server Load Balancer cannot be deployed for ECS instances in various regions.
If you must file your business license for record, pay attention to the following points:
- If your company is located in Beijing, select the China North 2 region for the ECS instance you have purchased.
- If your company is located in Guangdong, select the China South 1 region for the ECS instance you have purchased.
Note: In mainland China, the approval requirements for business record filing vary according to provincial communication management bureaus.