Application Load Balancer (ALB) is available in the regions and availability zones (AZs) listed on this page. For the latest information, check the buy page.
Key concepts
A region is a geographical area containing one or more data centers. A resource's region cannot be changed after creation.
A zone is a physically isolated location within a region with independent power and network infrastructure. Zones in the same region are connected by a low-latency internal network, so a failure in one zone does not affect other zones in the same region. Zones in different regions are fully isolated from each other.
ALB distributes traffic across the zones you select for real-time disaster recovery. A failure in one zone does not affect traffic forwarding in the others.
Supported regions and zones
Public cloud regions and zones
| Area | Region | Zone |
|---|---|---|
| China | China (Hangzhou) | Zone B, Zone G, Zone H, Zone I, Zone J, and Zone K |
| China | China (Shanghai) | Zone B, Zone D, Zone E, Zone F, Zone G, Zone L, Zone M, and Zone N |
| China | China (Shenzhen) | Zone C, Zone D, Zone E, and Zone F |
| China | China (Chengdu) | Zone A and Zone B |
| China | China (Qingdao) | Zone B and Zone C |
| China | China (Beijing) | Zone F, Zone G, Zone H, Zone I, Zone J, Zone K, and Zone L |
| China | China (Zhangjiakou) | Zone A, Zone B, and Zone C |
| China | China (Ulanqab) | Zone A, Zone B, Zone C, and Zone D |
| China | China (Hong Kong) | Zone B, Zone C, and Zone D |
| China | China (Guangzhou) | Zone A and Zone B |
| China | China (Heyuan) | Zone A and Zone B |
| Asia Pacific | Singapore | Zone A, Zone B, Zone C, and Zone D |
| Asia Pacific | Malaysia (Kuala Lumpur) | Zone A, Zone B, and Zone C |
| Asia Pacific | Japan (Tokyo) | Zone A, Zone B, Zone C, and Zone E |
| Asia Pacific | Indonesia (Jakarta) | Zone A, Zone B, and Zone C |
| Asia Pacific | South Korea (Seoul) | Zone A and Zone B |
| Asia Pacific | Philippines (Manila) | Zone A and Zone B |
| Asia Pacific | Thailand (Bangkok) | Zone A and Zone B |
| Europe & Americas | UK (London) | Zone A and Zone B |
| Europe & Americas | Germany (Frankfurt) | Zone A, Zone B, and Zone C |
| Europe & Americas | US (Virginia) | Zone A and Zone B |
| Europe & Americas | US (Silicon Valley) | Zone A and Zone B |
| Europe & Americas | Mexico (Queretaro) | Zone A |
| Middle East | SAU (Riyadh - Partner Region) | Zone A and Zone B |
| Middle East | UAE (Dubai) | Zone A and Zone B |
The following zones are available only for upgraded ALB instances: 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.
Supported regions for ALB dual-stack
Public cloud regions
| Area | Region |
|---|---|
| China | China (Hangzhou), China (Shanghai), China (Shenzhen), China (Heyuan), China (Chengdu), China (Qingdao), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Hong Kong), China (Guangzhou) |
| Asia Pacific | Singapore, Malaysia (Kuala Lumpur), Japan (Tokyo), Indonesia (Jakarta), South Korea (Seoul), Philippines (Manila), and Thailand (Bangkok) |
| Europe and Americas | UK (London), Germany (Frankfurt), US (Virginia), US (Silicon Valley), and Mexico |
Middle East | SAU (Riyadh - Partner Region) |
Middle East | SAU (Riyadh - Partner Region) |
| Middle East | Saudi Arabia (Riyadh) - partner-operated |
For details, see ALB Instance Overview.
Regions that support additional ALB features
Supported regions for ALB Enterprise Edition
ALB Enterprise Edition is in public preview. For more information, see Public preview notice.
| Area | Region | Zone |
|---|---|---|
| China | China (Ulanqab) | zone A, zone B, and zone C |
| China | China (Hangzhou) | zone J and zone K |
| China | China (Beijing) | zone K and zone L |
| Asia Pacific | Singapore | zone A, zone B, and zone C |
| Europe & Americas | Germany (Frankfurt) | zone A and zone B |
Regions that support WAF-enabled ALB
Public cloud regions
| Area | Region |
|---|---|
| China | China (Chengdu), China (Qingdao), China (Beijing), China (Guangzhou), China (Hangzhou), China (Ulanqab), China (Shanghai), China (Shenzhen), China (Zhangjiakou), China (Hong Kong), and 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 (Queretaro) |
| Middle East | Saudi Arabia (Riyadh), UAE (Dubai) |
For more information, see Enable WAF protection for an ALB instance.
Supported regions for Anycast EIPs
| Area | Region |
|---|---|
| China | China (Hong Kong) |
| Asia Pacific | South Korea (Seoul), Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), Indonesia (Jakarta), Philippines (Manila), Thailand (Bangkok) |
| Europe and Americas | UK (London), US (Virginia), US (Silicon Valley), Germany (Frankfurt) |
For more information, see Associate an Anycast EIP with an ALB instance for geo-proximity based access.
Supported regions for remote IPs
Upgraded ALB instances support remote IPs in all regions listed under Supported regions and zones. The following table lists the regions that support remote IPs for ALB instances before the upgrade.
Public cloud regions
| 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 Attach servers in a cross-region VPC to an ALB instance and Attach servers in a same-region IDC to an ALB instance.
Supported regions for Function Compute backends
| 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 | Saudi Arabia (Riyadh) - Operated by Partner |
For more information, see Add Function Compute (FC) as a backend server for ALB.
Supported regions for ALB tracing
Public cloud regions
| 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 and Americas | UK (London), Germany (Frankfurt), US (Virginia), and US (Silicon Valley) |
For details, see Enable Managed Service for OpenTelemetry for ALB.
API reference
Use the following API operations to query regions and zones programmatically:
DescribeRegions: Lists available regions.
DescribeZones: Lists zones for a specified region.