This topic describes the regions and zones in which Application Load Balancer (ALB) is available.
Overview of regions and zones
A region is a geographic area where data centers are located. After you create a resource, you cannot change its region. A zone is a physically separate location within a region. Each zone has its own independent power supply and network.
Zones in the same region can communicate over an internal network. Fault isolation is supported between zones. If one zone fails, other zones continue to run normally. Each region is fully independent. Zones in different regions are completely isolated. However, zones in the same region are connected by low-latency links.
To provide more stable and reliable load balancing services, ALB distributes traffic across zones. You choose which zones to use for your workloads. ALB provides real-time business-level disaster recovery across zones. If one zone fails, ALB continues to forward traffic to other zones.
Regions and zones supported by ALB
The regions and zones in which ALB is available in the following table are for reference only. For the actual supported regions and zones, refer to the buy page.
Regions and zones supported on Alibaba Cloud public cloud
Area | Region | Zone |
China | China (Hangzhou) | Zone B, Zone G, Zone H, Zone I, Zone J, and Zone K |
China (Shanghai) | Zone B, Zone D, Zone E, Zone F, Zone G, Zone L, Zone M, and Zone N | |
China (Shenzhen) | Zone C, Zone D, Zone E, and Zone F | |
China (Chengdu) | Zone A and Zone B | |
China (Qingdao) | Zone B and Zone C | |
China (Beijing) | Zone F, Zone G, Zone H, Zone I, Zone J, Zone K, and Zone L | |
China (Zhangjiakou) | Zone A, Zone B, and Zone C | |
China (Ulanqab) | Zone A, Zone B, Zone C, and Zone D | |
China (Hong Kong) | Zone B, Zone C, and Zone D | |
China (Guangzhou) | Zone A and Zone B | |
China (Heyuan) | Zone A and Zone B | |
Asia Pacific | Singapore | Zone A, Zone B, Zone C, and Zone D |
Malaysia (Kuala Lumpur) | Zone A, Zone B, and Zone C | |
Japan (Tokyo) | Zone A, Zone B, Zone C, and Zone E | |
Indonesia (Jakarta) | Zone A, Zone B, and Zone C | |
South Korea (Seoul) | Zone A and Zone B | |
Philippines (Manila) | Zone A and Zone B | |
Thailand (Bangkok) | Zone A and Zone B | |
Europe & Americas | UK (London) | Zone A and Zone B |
Germany (Frankfurt) | Zone A, Zone B, and Zone C | |
US (Virginia) | Zone A and Zone B | |
US (Silicon Valley) | Zone A and Zone B | |
Mexico | Zone A | |
Middle East | SAU (Riyadh - Partner Region) | Zone A and Zone B |
UAE (Dubai) | Zone A and Zone B |
The following zones support only upgraded ALB instances. Non-upgraded ALB instances do not support them:
South Korea (Seoul) Zone B, Malaysia (Kuala Lumpur) Zone C, Thailand (Bangkok) Zone B, Philippines (Manila) Zone B, China (Ulanqab) Zone D, Japan (Tokyo) Zone E, and Singapore Zone D.
Regions supported by dual-stack ALB
Supported public cloud regions
Area | Region |
China | China (Hangzhou), China (Shanghai), China (Shenzhen), China (Heyuan), China (Chengdu), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Ulanqab), Hong Kong (China), China (Guangzhou) |
Asia Pacific | Singapore, Malaysia (Kuala Lumpur), Japan (Tokyo), Indonesia (Jakarta), South Korea (Seoul), Philippines (Manila), and Thailand (Bangkok) |
Europe & Americas | UK (London), Germany (Frankfurt), US (Virginia), US (Silicon Valley), and Mexico |
Middle East | SAU (Riyadh - Partner Region) |
For more information, see ALB instances.
Regions supported by additional ALB features
Regions and zones supported by ALB Extensible Edition
Area | Region | Zone |
China | China (Ulanqab) | Zone A, Zone B, and Zone C |
China (Hangzhou) | Zone J and Zone K | |
Asia Pacific | Singapore | Zone A, Zone B, and Zone C |
Europe & Americas | Germany (Frankfurt) | Zone A and Zone B |
The ALB Extensible Edition is in public preview. For more information, see the announcement.
Regions supported by WAF-enhanced ALB
Regions supported by the public cloud
Area | Region |
China | China (Chengdu), China (Qingdao), China (Beijing), China (Guangzhou), China (Hangzhou), China (Ulanqab), China (Shanghai), China (Shenzhen), China (Zhangjiakou), Hong Kong (China), China (Heyuan) |
Asia Pacific | Philippines (Manila), Indonesia (Jakarta), Japan (Tokyo), Malaysia (Kuala Lumpur), Singapore, Thailand (Bangkok), and South Korea (Seoul) |
Europe & Americas | Germany (Frankfurt), US (Silicon Valley), US (Virginia), and Mexico |
Middle East | SAU (Riyadh - Partner Region) and UAE (Dubai) |
For more information, see Enable WAF protection for an ALB instance.
Regions that support associating Anycast EIPs with ALB instances
Area | Region |
China | China (Hong Kong) |
Asia Pacific | South Korea (Seoul), Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Philippines (Manila), and Thailand (Bangkok) |
Europe & Americas | UK (London), US (Virginia), US (Silicon Valley), and Germany (Frankfurt) |
For more information, see Associate Anycast EIPs with an ALB instance.
Regions that support attaching remote IP addresses to ALB instances
ALB upgrade instances allow you to mount remote IP addresses in specific regions. For more information, see ALB-supported regions. The following table lists the regions where pre-upgrade ALB instances support this feature.
Regions Supported by Public Cloud
Area | Region |
China | China (Chengdu), China (Qingdao), China (Beijing), China (Heyuan), China (Guangzhou), China (Hangzhou), China (Ulanqab), China (Shanghai), China (Shenzhen), China (Zhangjiakou), and China (Hong Kong) |
Asia Pacific | Indonesia (Jakarta), Japan (Tokyo), Malaysia (Kuala Lumpur), and Singapore |
Europe & Americas | Germany (Frankfurt), US (Silicon Valley), US (Virginia), and UK (London) |
For more information, see Specify a backend server located in a VPC in a different region for ALB and Add on-premises servers to an ALB instance within the same region.
Regions that support adding Function Compute as a backend service for ALB
Area | Region |
China | China (Hangzhou), China (Shanghai), China (Shenzhen), China (Chengdu), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hong Kong), and China (Ulanqab) |
Asia Pacific | Singapore, Malaysia (Kuala Lumpur), Japan (Tokyo), Indonesia (Jakarta), South Korea (Seoul), and Thailand (Bangkok) |
Europe & Americas | Germany (Frankfurt), US (Virginia), US (Silicon Valley), and UK (London) |
Middle East | SAU (Riyadh - Partner Region) |
For more information, see Specify a function from Function Compute as a backend server for ALB.
Regions that support Managed Service for OpenTelemetry for ALB
Regions supported on Alibaba Cloud public cloud
Area | Region |
China | China (Hangzhou), China (Shanghai), China (Shenzhen), China (Chengdu), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Hong Kong), China (Guangzhou), and China (Heyuan) |
Asia Pacific | Singapore, Malaysia (Kuala Lumpur), Japan (Tokyo), Indonesia (Jakarta) |
Europe & Americas | UK (London), Germany (Frankfurt), US (Virginia), and US (Silicon Valley) |
For more information, see Use ALB Tracing Analysis to perform full-link business analysis.
References
Query regions: Queries active regions.
Query zones: Retrieves a list of zones in a region.