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Regions and AZs

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Last updated: 2026-08-10 10:00:43
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TencentDB hosted IDCs are distributed in multiple locations around the world. These locations are called Regions (Region), and each Region consists of multiple AZs (Zone). Each Region (Region) is an independent geographical area. Within each Region, there are multiple isolated locations called AZs (Zone). Each AZ is independent, but AZs within the same Region are connected via low-latency private network links. Tencent Cloud supports users in distributing cloud resources across different locations. It is recommended that users consider placing resources in different AZs when designing systems to avoid service unavailability caused by single points of failure.
Names of regions and AZs directly reflect the coverage of IDCs. To facilitate customers' understanding, the naming rules are as follows:
The structure of Coverage + Located City of IDC is adopted for region naming. The first half represents the coverage capacity of the IDC, and the second half represents the city where the IDC is located or nearby.
AZ naming adopts the structure of City + Number.

Regions

Tencent Cloud regions are completely isolated from each other to ensure maximum stability and fault tolerance across regions. It is recommended that you select the region closest to your users to reduce access latency and improve download speeds. Operations such as launching instances and viewing instances are region-specific. Considerations for private network communication within cloud products are as follows:
Cloud resources in the same region (within the same account and VPC) can be interconnected through the private network, which can be accessed directly using Private IP address.
The networks of different regions are completely isolated from each other, and cloud products in different regions cannot be interconnected over the private network by default.
Cloud products in different regions can communicate with each other by accessing the Internet through public IP addresses, while those in different private networks can communicate with each other through Cloud Connect Network, which is a relatively high-speed and stable communication method.
CLB currently supports traffic forwarding within the same region by default and can be bound to CVMs in the local region. If you enable the cross-region binding feature, CLB can support cross-region binding to CVMs.

AZ

AZ (Zone) refers to Tencent Cloud's physically independent data centers within the same region, each with separate power and network systems. The goal is to ensure fault isolation between AZs (excluding large-scale disasters or major power failures), preventing fault propagation and maintaining continuous online services for user businesses. By launching instances in independent AZs, users can protect applications from single-location failures. When launching instances, users can select any AZ within a specified region. To design high-availability application systems (maintaining service availability during instance failures), users can adopt cross-AZ deployment solutions (such as CLB, Elastic IP, and so on), enabling instances in another AZ to handle relevant requests.

List of Regions and AZs

Composition of regions and AZs:
Note:
Currently, public network connections are supported only in the following regions:
Guangzhou, Shanghai, Beijing, Chengdu, Chongqing, Nanjing, Hong Kong (China), Singapore, Seoul, Tokyo, Silicon Valley, Virginia, Frankfurt, Jakarta, Riyadh.

China

Region
AZ
South China (Guangzhou)
ap-guangzhou
Guangzhou Zone 1 (Sold Out)
ap-guangzhou-1
Guangzhou Zone 3
ap-guangzhou-3
Guangzhou Zone 4
ap-guangzhou-4
Guangzhou Zone 6
ap-guangzhou-6
Guangzhou Zone 7
ap-guangzhou-7
South China (Shenzhen Finance)
ap-shenzhen-fsi
Shenzhen Finance Zone 1 (only available to financial institutions and enterprises through online consultation to apply for activation.)
ap-shenzhen-fsi-1
Shenzhen Finance Zone 2 (only available to financial institutions and enterprises through online consultation to apply for activation.)
ap-shenzhen-fsi-2
Shenzhen Finance Zone 3 (only available to financial institutions and enterprises through online consultation to apply for activation.)
ap-shenzhen-fsi-3
East China (Shanghai)
ap-shanghai
Shanghai Zone 2
ap-shanghai-2
Shanghai Zone 3
ap-shanghai-3
Shanghai Zone 4
ap-shanghai-4
Shanghai Zone 5
ap-shanghai-5
Shanghai Zone 8
ap-shanghai-8
East China (Nanjing)
ap-nanjing
Nanjing Zone 1
ap-nanjing-1
Nanjing Zone 2
ap-nanjing-2
Nanjing Zone 3
ap-nanjing-3
East China (Shanghai Finance)
ap-shanghai-fsi
Shanghai Finance Zone 1 (only available to financial institutions and enterprises through online consultation to apply for activation.)
ap-shanghai-fsi-1
Shanghai Finance Zone 2 (only available to financial institutions and enterprises through online consultation to apply for activation.)
ap-shanghai-fsi-2
Shanghai Finance Zone 3 (only available to financial institutions and enterprises through online consultation to apply for activation.)
ap-shanghai-fsi-3
North China (Beijing)
ap-beijing
Beijing Zone 1
ap-beijing-1
Beijing Zone 3
ap-beijing-3
Beijing Zone 4
ap-beijing-4
Beijing Zone 5
ap-beijing-5
Beijing Zone 6
ap-beijing-6
Beijing Zone 7
ap-beijing-7
North China (Beijing Finance)
ap-beijing-fsi
Beijing Finance Zone 1 (only for financial institutions and enterprises to apply for activation via online consultation)
ap-beijing-fsi-1
Southwest China (Chengdu)
ap-chengdu
Chengdu Zone 1
ap-chengdu-1
Chengdu Zone 2
ap-chengdu-2
Southwest China (Chongqing)
ap-chongqing
Chongqing Zone 1
ap-chongqing-1
Hong Kong (China), Macao (China), and Taiwan (China)
ap-hongkong
Hong Kong Zone 1 (Hong Kong (China) nodes can be used to cover Hong Kong/Macao/Taiwan (China))
ap-hongkong-1
Hong Kong Zone 2 (Hong Kong (China) nodes can be used to cover Hong Kong/Macao/Taiwan (China))
ap-hongkong-2
Hong Kong Zone 3 (Hong Kong (China) nodes can be used to cover Hong Kong/Macao/Taiwan (China))
ap-hongkong-3

Countries and Regions Outside China

Region
AZ
Southeast Asia Pacific (Singapore)
ap-singapore
Singapore Zone 1 (Singapore nodes can be used to cover the Southeast Asia region)
ap-singapore-1
Singapore Zone 2 (Singapore nodes can be used to cover the Southeast Asia region)
ap-singapore-2
Singapore Zone 3 (Singapore nodes can be used to cover the Southeast Asia region)
ap-singapore-3
Singapore Zone 4 (Singapore nodes can be used to cover the Southeast Asia region)
ap-singapore-4
Southeast Asia Pacific (Jakarta)
ap-jakarta
Jakarta Zone 1
ap-jakarta-1
Jakarta Zone 2
ap-jakarta-2
Southeast Asia Pacific (Bangkok)
ap-bangkok
Bangkok Zone 1 (Bangkok nodes can be used to cover the Southeast Asia region)
ap-bangkok-1
Bangkok Zone 2 (Bangkok nodes can be used to cover the Southeast Asia region)
ap-bangkok-2
Southeast Asia (Johor Bahru)
ap-johorbahru
Johor Bahru Zone 1
ap-johorbahru-1
Johor Bahru Zone 2
ap-johorbahru-2
Northeast Asia Pacific (Seoul)
ap-seoul
Seoul Zone 1 (Seoul nodes can be used to cover the Northeast Asia region)
ap-seoul-1
Seoul Zone 2 (Seoul nodes can be used to cover the Northeast Asia region)
ap-seoul-2
Northeast Asia Pacific (Tokyo)
ap-tokyo
Tokyo Zone 1 (Tokyo nodes can be used to cover the Northeast Asia region).
ap-tokyo-1
Tokyo Zone 2 (Tokyo nodes can be used to cover the Northeast Asia region).
ap-tokyo-2
Northeast Asia Pacific (Osaka)
ap-osaka
Osaka zone1 (Osaka nodes can be used to cover the Northeast Asia region)
ap-osaka-1
West US (Silicon Valley)
na-siliconvalley
Silicon Valley Zone 1 (Sold Out)
na-siliconvalley-1
Silicon Valley Zone 2 (Silicon Valley nodes can be used to cover the West US region).
na-siliconvalley-2
Eastern United States (Virginia)
na-ashburn
Virginia Zone 1 (Virginia nodes can be used to cover the East US region).
na-ashburn-1
Virginia Zone 2 (Virginia nodes can be used to cover the East US region).
na-ashburn-2
South America (São Paulo)
sa-saopaulo
Sao Paulo Zone 1 (Sao Paulo nodes can be used to cover the South America region).
sa-saopaulo-1
Europe (Frankfurt)
eu-frankfurt
Frankfurt Zone 1 (Frankfurt nodes can be used to cover the Europe region).
eu-frankfurt-1
Frankfurt Zone 2 (Frankfurt nodes can be used to cover the Europe region).
eu-frankfurt-2
Middle East (Riyadh)
me-saudi-arabia
Riyadh Zone 1
me-saudi-arabia-1
Riyadh Zone 2
me-saudi-arabia-2

Corresponding regions support disk types

For instances with two-node, three-node, or four-node architectures, the disk type is set to local SSD by default. For instances with single-node or cluster edition architectures, the disk type is set to cloud disk, which includes Cloud SSD, Enhanced SSD, Premium Disk, and Extreme SSD. Note that the regions supported by different types of cloud disks vary slightly. For details, refer to the table below.
Note:
CLOUD_HSSD: Enhanced SSD CBS.
CLOUD_SSD: Cloud SSD.
CLOUD_PREMIUM: Premium Disk.
CLOUD_TSSD: Extreme SSD CBS.
Single-Node
Cluster Edition
Region
AZ
Supported Disk Type
Guangzhou
ap-guangzhou-6
ap-guangzhou-7
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Shanghai
ap-shanghai-2
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
ap-shanghai-5
ap-shanghai-8
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM,CLOUD_TSSD
Nanjing
ap-nanjing-1
ap-nanjing-1
CLOUD_HSSD,CLOUD_SSD
Beijing
ap-beijing-6
ap-beijing-7
ap-beijing-8
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Chengdu
ap-chengdu-1
ap-chengdu-2
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Hong Kong (China)
ap-hongkong-2
ap-hongkong-3
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Singapore
ap-singapore-2
ap-singapore-3
ap-singapore-4
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Jakarta
ap-jakarta-1
ap-jakarta-2
CLOUD_HSSD,CLOUD_SSD
Seoul
ap-seoul-1
ap-seoul-2
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Silicon Valley
na-siliconvalley-1
na-siliconvalley-2
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Frankfurt
eu-frankfurt-1
eu-frankfurt-2
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM,CLOUD_TSSD
Region
AZ
Type
Supported Disk Type
Guangzhou
ap-guangzhou-6
ap-guangzhou-7
Standard
Enhanced
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Shanghai
ap-shanghai-2
Standard
Enhanced
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
ap-shanghai-5
ap-shanghai-8
Standard
Enhanced
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM,CLOUD_TSSD
Nanjing
ap-nanjing-1
ap-nanjing-3
Standard
Enhanced
CLOUD_SSD,CLOUD_HSSD
Beijing
ap-beijing-6
ap-beijing-7
ap-beijing-8
Standard
Enhanced
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Chengdu
ap-chengdu-1
ap-chengdu-2
Standard
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Hong Kong (China)
ap-hongkong-2
ap-hongkong-3
Standard
Enhanced
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Singapore
ap-singapore-2
ap-singapore-3
ap-singapore-4
Standard
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Enhanced
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM,CLOUD_TSSD
Jakarta
ap-jakarta-1
ap-jakarta-2
Standard
CLOUD_HSSD,CLOUD_SSD
Seoul
ap-seoul-1
ap-seoul-2
Standard
Enhanced
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Silicon Valley
na-siliconvalley-1
na-siliconvalley-2
Standard
Enhanced
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM
Frankfurt
eu-frankfurt-1
eu-frankfurt-2
Standard
CLOUD_HSSD,CLOUD_SSD,CLOUD_PREMIUM,CLOUD_TSSD

How to Choose Regions and Azs

When you purchase Tencent Cloud services, it is recommended that you select the region closest to your users to reduce access latency and improve download speed.

Regions and AZs Supported by Read-Only Analysis Engine

The regions and availability zones (AZs) currently supported by the read-only analysis engine feature of TencentDB for MySQL are shown in the table below. The enabling and usage of the engine can be in a different AZ from that of the primary instance.
Region
AZ
North China (Beijing)
ap-beijing
Beijing Zone 5
ap-beijing-5
Beijing Zone 6
ap-beijing-6
Beijing Zone 7
ap-beijing-7
East China (Shanghai)
ap-shanghai
Shanghai Zone 6
ap-shanghai-6
South China (Guangzhou)
ap-guangzhou
Guangzhou Zone 4
ap-guangzhou-4
Guangzhou Zone 7
ap-guangzhou-7
Southwest China (Chengdu)
ap-chengdu
Chengdu Zone 1
ap-chengdu-1
Hong Kong (China), Macao (China), and Taiwan (China)
ap-hongkong
Hong Kong (China) Zone 2
ap-hongkong-2
East China (Nanjing)
ap-nanjing
Nanjing Zone 3
ap-nanjing-3
Southeast Asia Pacific (Singapore)
ap-singapore
Singapore Zone 4
ap-singapore-4
Eastern United States (Virginia)
na-ashburn
Virginia Zone 1
na-ashburn-1
Virginia Zone 2
na-ashburn-2
South America (São Paulo)
sa-saopaulo
São Paulo Zone 1
sa-saopaulo-1
Europe (Frankfurt)
eu-frankfurt
Frankfurt Zone 1
eu-frankfurt-1
Previous Topic: High Availability (Multi-AZ)Next Topic: Service Regions and Service Providers

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