Regions and zones in which ALB is available

This topic describes the regions and zones in which Application Load Balancer (ALB) is available.

Regions and zones

Regions are geolocations of data centers. After you create a cloud resource, you cannot change the region in which the cloud resource is deployed. Each region has multiple isolated locations known as zones. Each zone has its own independent power supply and network.

Zones within the same region can communicate with each other over an internal network. Fault isolation can be enabled between zones. This way, if faults occur in a zone, other zones are not affected and continue to run as expected. Regions are independent of each other. Zones are isolated from each other. The network latency between zones within the same region is low.

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

The regions and zones in which ALB is available in the following table are for reference only. The information on the buy page shall prevail.

Regions and zones that support instances on the Alibaba Cloud public cloud

Area	Region	Zone
China	China (Hangzhou)	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) region	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 and Zone B
	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, and Zone C
	Malaysia (Kuala Lumpur)	Zone A and Zone B
	Japan (Tokyo)	Zone A, Zone B, and Zone C
	Indonesia (Jakarta)	Zone A, Zone B, and Zone C
	South Korea (Seoul)	Zone A
	Philippines (Manila)	Zone A
	Thailand (Bangkok)	Zone A
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

Regions in which dual-stack ALB instances are available

Regions and zones that support instances on the 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, Japan (Tokyo)
Europe and Americas	Germany (Frankfurt), US (Virginia), UK (London), US (Silicon Valley), and Mexico
Middle East	SAU (Riyadh - Partner Region)

Note

For more information, see IP versions.

Regions in which ALB features are supported

Regions in which WAF-enabled ALB instances are available

Area	Region
China	China (Chengdu), China (Qingdao), China (Beijing), China (Guangzhou), China (Hangzhou), China (Ulanqab), China (Shanghai), China (Shenzhen), China (Zhangjiakou), and China (Hong Kong)
Asia Pacific	Philippines (Manila), Indonesia (Jakarta), Japan (Tokyo), Malaysia (Kuala Lumpur), Singapore, and Thailand (Bangkok)
Europe and Americas	Germany (Frankfurt), US (Silicon Valley), and US (Virginia)
Middle East	SAU (Riyadh - Partner Region)

Note

For more information, see Activate and manage WAF-enabled ALB instances.

Regions in which you can associate 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 and Americas	UK (London), US (Virginia), US (Silicon Valley), and Germany (Frankfurt)

Note

For more information, see Associate Anycast EIPs with an ALB instance to enable access through the nearest access point.

Regions in which you can add remote IP addresses to an ALB instance

ALB upgraded instances deployed in these regions support adding remote IP addresses as backend servers: Regions and zones in which ALB is available. The regions where non-upgraded ALB instances support this feature are listed below:

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), UK (London), US (Virginia), and US (Silicon Valley)

Note

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 in which you can add Function Compute to ALB as backend servers

Area	Region
China	China (Hangzhou), China (Shanghai), China (Shenzhen), China (Chengdu), China (Qingdao), China (Beijing), China (Zhangjiakou), and China (Hong Kong)
Asia Pacific	Singapore, Malaysia (Kuala Lumpur), Japan (Tokyo), and Indonesia (Jakarta)
Europe & Americas	Germany (Frankfurt), US (Virginia), and US (Silicon Valley)
Middle East	SAU (Riyadh - Partner Region)

Regions in which Managed Service for OpenTelemetry is supported by ALB

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), and Indonesia (Jakarta)
Europe & Americas	UK (London), Germany (Frankfurt), US (Virginia), and US (Silicon Valley)

Note

For more information, see Enable Managed Service for OpenTelemetry for ALB.

References

DescribeRegions: queries the most recent region list.
DescribeZones: queries zones in a region.