Regions
A region refers to the geographical location of a physical data center. Tencent Cloud regions are completely isolated from each other, ensuring maximum stability and fault tolerance between different regions. To minimize access latency and enhance download speed, it is recommended to select the region closest to your customers.
The following are the characteristics of a region:
The networks of different regions are entirely isolated from each other, and by default, Tencent Cloud services in different regions cannot communicate with each other over the private network.
Tencent Cloud services across different regions can access the Internet via public network services. Services within a private network can also communicate through Tencent Cloud's Cloud Connect Network via Tencent Cloud's high-speed interconnection network, providing a more stable and faster connection than Internet access.
Cloud Load Balancer currently supports traffic forwarding within the same region by default, binding to CVMs in the local region. If the Cross-Region Binding Load Balancer feature is enabled, it can support binding CVMs across different regions to the load balancer.
Special Note for Shenzhen/Shanghai Finance Zones:
These zones are tailor-made for compliance with regulatory requirements in the finance industry, featuring high security and isolation. Currently, they provide services such as Cloud Virtual Machines, Cloud Block Storage, finance databases, Redis storage, and face recognition. Verified financial industry customers can submit a ticket to apply for use of these zones. For more information, please refer to Introduction to Finance Cloud.
Availability Zones
An availability zone (AZ) is a physical data center within the same region of Tencent Cloud, with independent power supply and network. The objective is to ensure that failures are isolated between AZs (except for major disasters or power failures), preventing failure propagation and ensuring continuous online services for users. By launching instances within an independent AZ, users can protect their applications from being affected by a single point of failure.
The following are the characteristics of an availability zone:
Under the same Tencent Cloud account, services in different availability zones but within the same VPC (Virtual Private Cloud) in the same region can communicate with each other over the private network and can be accessed directly via private network services.
Resources under different Tencent Cloud accounts are availability zone-specific, meaning they cannot communicate via a private network, even if they are in the same region.
China
Regions | Availability Zones |
South China (Guangzhou) ap-guangzhou | Guangzhou Zone 1 (Sold out) ap-guangzhou-1 |
| Guangzhou Zone 2 (Sold out) ap-guangzhou-2 |
| 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 (available exclusively for financial institutions and enterprises through online consultation application) ap-shenzhen-fsi-1 |
| Shenzhen Finance Zone II (exclusively available to financial institutions and enterprises via online consultation for application) ap-shenzhen-fsi-2 |
| Shenzhen Finance Zone 3 (exclusively available to financial institutions and enterprises, which can apply for access via online consultation) ap-shenzhen-fsi-3 |
East China (Shanghai) ap-shanghai | Shanghai Zone 1 (Sold out) ap-shanghai-1 |
| 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 (Shanghai Finance) ap-shanghai-fsi | East China (Shanghai Finance) - Available exclusively for financial institutions and enterprises through online consultation application. ap-shanghai-fsi-1 |
| Shanghai Finance Zone 2 (Exclusive to financial institutions and enterprises, activation upon online consultation only) ap-shanghai-fsi-2 |
| ap-shanghai-fsi-2 (Exclusive to financial institutions and enterprises, activation upon online consultation only) ap-shanghai-fsi-3 |
East China (Nanjing) ap-nanjing | Nanjing Zone 1 ap-nanjing-1 |
| Nanjing Zone 2 ap-nanjing-2 |
| Nanjing Zone 3 ap-nanjing-3 |
North China (Beijing) ap-beijing | Beijing Zone 1 (sold out) ap-beijing-1 |
| Beijing Zone 2 ap-beijing-2 |
| 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 |
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, Macao and Taiwan, China (Hong Kong) ap-hongkong | Hong Kong Zone 1 (Nodes in Hong Kong, China can cover services in Hong Kong/Macao/Taiwan regions) (Sold out) ap-hongkong-1 |
| Hong Kong Zone 2 (Hong Kong nodes cover services in the China regions of Hong Kong, Macao, and Taiwan) ap-hongkong-2 |
| Hong Kong Zone 3 (Hong Kong nodes cover services in the China regions of Hong Kong, Macao, and Taiwan) ap-hongkong-3 |
Note
The product is currently in beta testing for the regions of Jinan, Hangzhou, Fuzhou, Wuhan, Changsha, and Shijiazhuang. If you wish to use it, please contact your account manager or submit a ticket to request access.
Other Countries and Regions
Regions | Availability Zones |
Southeast Asia (Singapore) ap-singapore | Singapore Zone 1 (Nodes in Singapore can cover Southeast Asia) ap-singapore-1 |
| Singapore Zone 2 (Nodes in Singapore can cover Southeast Asia) ap-singapore-2 |
| Singapore Zone 3 (Nodes in Singapore can cover Southeast Asia) ap-singapore-3 |
| Singapore Zone 4 (Nodes in Singapore can cover Southeast Asia) ap-singapore-4 |
Southeast Asia (Jakarta) ap-jakarta | Jakarta Zone 1 (Nodes in Jakarta can cover Southeast Asia) ap-jakarta-1 |
| Jakarta Zone 2 (Jakarta nodes cover services in Southeast Asia) ap-jakarta-2 |
Northeast Asia (Seoul) ap-seoul | Seoul Zone 1 (Seoul nodes cover services in Northeast Asia) ap-seoul-1 |
| Seoul Zone 2 (Seoul nodes cover services in Northeast Asia) ap-seoul-2 |
Northeast Asia (Tokyo) ap-tokyo | Tokyo Zone 1 (Tokyo nodes cover services in Northeast Asia) ap-tokyo-1 |
| Tokyo Zone 2 (Tokyo node AZs cover services in Northeast Asia) ap-tokyo-2 |
South Asia (Mumbai) ap-mumbai | Mumbai Zone 1 (Mumbai nodes cover services in South Asia) ap-mumbai-1 |
| Mumbai Zone 2 (Mumbai nodes cover services in South Asia) ap-mumbai-2 |
Southeast Asia (Bangkok) ap-bangkok | Bangkok Zone 1 (Bangkok nodes cover services in Southeast Asia) ap-bangkok-1 |
| Bangkok Zone 2 (Bangkok nodes cover services in Southeast Asia) ap-bangkok-2 |
North America (Toronto) na-toronto | Toronto Zone 1 (Toronto nodes cover services in North America) na-toronto-1 |
South America (Sao Paulo) sa-saopaulo | São Paulo Zone 1 (São Paulo nodes cover services in South America) sa-saopaulo-1 |
US West (Silicon Valley) na-siliconvalley | Silicon Valley Zone 1 (Silicon Valley nodes cover services in West US) na-siliconvalley-1 |
| Silicon Valley Zone 2 (Silicon Valley nodes cover services in West US) na-siliconvalley-2 |
US East (Virginia) na-ashburn | Virginia Zone 1 (Virginia nodes cover services in East US) na-ashburn-1 |
| Virginia Zone 2 (Virginia nodes cover services in East US) na-ashburn-2 |
Europe (Frankfurt) eu-frankfurt | Frankfurt Zone 1 (Frankfurt nodes cover services in Europe) eu-frankfurt-1 |
| Frankfurt Zone 2 (Frankfurt nodes cover services in Europe) eu-frankfurt-2 |
Selection of Regions and AZs
When selecting a region and availability zone, take the following into consideration:
Restrictions on the attachment of cloud disks. Cloud disks can only be attached to a CVM in the same availability zone.
Consider the region where the CVM that requires a cloud disk is located, as well as your location and the geographical location of your target users. When purchasing cloud services, it is recommended to select the region closest to your customers to minimize access latency and enhance access speed.
The relationship between CVMs that require cloud disks and other Tencent Cloud services. It is recommended that the selected services are all located in the same region and availability zone, enabling them to communicate with each other over the private network, thereby reducing access latency and enhancing access speed.
Considerations for high availability and disaster recovery: Even in scenarios with only one VPC, it is recommended to deploy services across different availability zones at the very least. This ensures fault isolation between availability zones and facilitates cross-zone disaster recovery.
There may be network latency among different availability zones. We recommend that you assess your business requirements and find the optimal balance between high availability and low latency.
Related Actions
Your actions such as using and viewing cloud disks are distinguished by region attributes. If you need to conveniently migrate data and services to other regions, or build a cross-region disaster recovery system, you can replicate snapshots to other regions. For more information, please refer to Cross-Region Snapshot Replication.