This topic describes the regions and zones that are supported by Application Load Balancer (ALB).

Regions and zones

A region is a geographical area where data centers reside. You cannot change the region to which a resource belongs after the resource is created. Each region has multiple isolated locations that are known as zones. Each zone has its own independent power supply and network. Infrastructure failure in one zone does not affect other zones. Regions are independent of each other. Zones are isolated from each other. However, zones in the same region can be connected with low-latency connections.

To provide more stable and reliable load balancing services, ALB distributes requests across multiple zones and supports real-time disaster recovery. If one zone fails, ALB distributes requests to other zones.

Regions and zones supported by ALB

Region Zone
China (Hangzhou) Zone H, Zone I, and Zone G
China (Shanghai) Zone E, Zone F, and Zone G
China (Shenzhen) Zone D and Zone E
China (Chengdu) Zone A and Zone B
China (Qingdao) Zone B and Zone C
China (Beijing) Zone H, Zone G, and Zone I
China (Zhangjiakou) Zone A, Zone B, and Zone C
China (Ulanqab) Zone A and Zone B
China (Hong Kong) Zone B and Zone C
Singapore (Singapore) Zone B and Zone C
Australia (Sydney) Zone A and Zone B
Japan (Tokyo) Zone A and Zone B
Indonesia (Jakarta) Zone A and Zone B
Germany (Frankfurt) Zone A and Zone B
US (Virginia) Zone A and Zone B
India (Mumbai) Zone A and Zone B

References