Regions

Alibaba Cloud regions are physical locations (data centers) that are spread all over the world to reduce network latency. The region cannot be changed once a resource is created in it. The following table lists all the Alibaba Cloud regions, corresponding cities, and region IDs.
Note The available regions vary according to the product. To view a list of regions available for each product, see Alibaba Cloud Global Infrastructure.
  • Regions in mainland China
    Region name City Region ID Number of zones
    China North 1 Qingdao cn-qingdao 2
    China North 2 Beijing cn-beijing 7
    China North 3 Zhangjiakou cn-zhangjiakou 2
    China North 5 Hohhot cn-huhehaote 1
    China East 1 Hangzhou cn-hangzhou 7
    China East 2 Shanghai cn-shanghai 5
    China South 1 Shenzhen cn-shenzhen 4
  • International regions
    Region name City Region ID Number of zones
    Hong Kong Hong Kong cn-hongkong 2
    Asia Pacific SE 1 Singapore ap-southeast-1 3
    Asia Pacific SE 2 Sydney ap-southeast-2 2
    Asia Pacific SE 3 Kuala Lumpur ap-southeast-3 2
    Asia Pacific SE 5 Jakarta ap-southeast-5 1
    Asia Pacific SOU 1 Mumbai  ap-south-1 2
    Asia Pacific NE 1 Tokyo ap-northeast-1 1
    US West 1 Silicon Valley us-west-1 2
    US East 1 Virginia us-east-1 2
    EU Central 1 Frankfurt eu-central-1 2
    UK (London) London eu-west-1 2
    Middle East 1 Dubai me-east-1 1

When choosing a region, consider the following factors:

  • Geographic location

    Choose a region based on the geographic locations of you and your target users.

    • Regions in mainland China

      In general, we recommend that you choose the data center closest to your target users so that they have fast access. Alibaba Cloud's data centers in the regions in mainland China are similar to one another in terms of infrastructure, BGP network quality, service quality, ECS operation and configuration. The regions offer BGP backbone network lines covering all provinces, autonomous regions, and municipalities to guarantee fast, stable access within mainland China.

    • International regions

      Alibaba Cloud's international regions are data centers outside mainland China. They offer access at international bandwidth. Users in mainland China that access services deployed in these regions may experience high latency. Therefore, we do not recommend deploying services in international regions if users from mainland China require access.

      • If you have business operations in Hong Kong or Southeast Asia, choose the region Hong Kong, Asia Pacific SE 1, Asia Pacific SE 3, or Asia Pacific SE 5.
      • If you have business operations in Japan or Korea, choose the region Asia Pacific NE 1.
      • If you have business operations in India, choose the region Asia Pacific SOU 1.
      • If you have business operations in Australia, choose the region Asia Pacific SE 2.
      • If you have business operations in America, choose the region US East 1 or US West 1.
      • If you have business operations in Continental Europe, choose the region EU Central 1.
      • If you have business operations in the United Kingdom, choose the region UK (London).
      • If you have business operations in the Middle East, choose the region Middle East 1.
  • Intranet communication between Alibaba Cloud products across regions

    Intranet communication between Alibaba Cloud products that are not in the same region is not supported, which means:

    • ECS instances and other products, such as ApsaraDB for RDS and OSS instances, cannot communicate with one another over the intranet if they are in different regions.
    • Server Load Balancer cannot be deployed for ECS instances in different regions.
  • Resource pricing

    The price of resources may vary according to the region. For details, see the product pricing page.

  • Business license filing

    When you choose a region, consider the special requirements of some areas. If you have purchased an ECS instance in mainland China and used it for a web server, complete business license filing first.

    To complete business license filing, pay attention to the following points:

    • If your company is located in Beijing, choose the China North 2 region for the ECS instance you have purchased.
    • If your company is located in Guangdong, choose the China South 1 region for the ECS instance you have purchased.
    Note The communications administrations in different provinces, autonomous regions, and municipalities have different approval requirements for business license filing. In case of any change, the information published on the business license filing website of your local administration prevails. For the different approval requirements, refer to provincial communications administrations.

Zones

Zones are physical areas with independent power grids and networks within one region. The network latency for instances within the same zone is shorter.

Intranet communication can take place between instances in different zones of the same region, and fault isolation can be achieved between zones. Whether or not instances can be deployed in the same zone depends on the requirements for disaster recovery and network latency.

  • If your applications require high disaster recovery capabilities, we recommend that you deploy your instances in different zones of the same region.
  • If your applications require low network latency between instances, we recommend that you create your instances in the same zone.

For more information about regions and zones, see Alibaba Cloud Global Infrastructure.