Regions and AZs
Last updated:2026-01-20 16:37:22
A region refers to the geographical area of physical data centers. Availability zones (AZs) are physically independent data centers within the same Tencent Cloud region, with separate power and network resources. For more information, see CVM - Regions and AZs.
Supported Regions
China
Region | Value | |
South China | Guangzhou | ap-guangzhou |
| Shenzhen | ap-shenzhen |
| Shenzhen Finance | ap-shenzhen-fsi (Only financial institutions and enterprises can apply for activation through online consultation.) |
East China | Shanghai | ap-shanghai |
| Shanghai Finance | ap-shanghai-fsi (Only financial institutions and enterprises can apply for activation through online consultation.) |
| Nanjing | ap-nanjing |
| Hangzhou | ap-hangzhou |
| Shanghai Autonomous Driving Cloud | ap-shanghai-adc |
North China | Beijing | ap-beijing |
| Beijing Finance | ap-beijing-fsi (Only financial institutions and enterprises can apply for activation through online consultation.) |
| Tianjin | ap-tianjin |
Central China | Changsha | ap-changsha |
| Wuhan | ap-wuhan |
Southwest China | Chengdu | ap-chengdu |
| Chongqing | ap-chongqing |
Hong Kong (China), Macao (China), and Taiwan (China) | Taipei (China) | ap-taipei |
| Hong Kong (China) | ap-hongkong |
Other Countries and Regions
Region | Value | |
Southeast Asia | Singapore | ap-singapore |
| Thailand | ap-bangkok |
| Jakarta | ap-jakarta |
Asia Pacific | Seoul | ap-seoul |
| Tokyo | ap-tokyo |
Western United States | Silicon Valley | na-siliconvalley |
Eastern United States | Virginia | na-ashburn |
South America | São Paulo | sa-saopaulo |
Europe | Frankfurt | eu-frankfurt |
How Do I Select a Region and an AZ?
When you select a region and an AZ, you should consider the following factors:
The region where the TDMQ for CKafka (CKafka) instance is located, and the geographic location of you and your target users.
It is recommended that when you purchase a CKafka instance, you select the region closest to your customers to reduce access latency and improve access speed.
The relationship between the CKafka instance and other cloud products.
It is recommended that you deploy other cloud products in the same region and AZ whenever possible. This allows different cloud products to communicate over the private network, reducing access latency and improving access speed.
High availability and disaster recovery for your business.
Even in scenarios with only one Virtual Private Cloud (VPC) network, it is recommended that you deploy your business across at least two different AZs to ensure fault isolation between AZs and achieve cross-AZ disaster recovery.
There may be network communication latency between different AZs. Evaluate it based on your actual business requirements to find the optimal balance between high availability and low latency.
If you need to access hosts in other countries and regions, it is recommended that you select CKafka instances in those countries and regions. If you create a CKafka instance in China, accessing hosts in other countries and regions will experience high latency and is not recommended.
Resource Location Description
The following table describes which CKafka resources are global, which are specific to regions but not to AZs, and which are based on AZs.
Resource | Resource ID Format (<resource_abbreviation>-8-Digit String of Digits and Letters) | Type | Description |
User account | Unlimited | Globally unique | Users can use the same account to access Tencent Cloud resources around the world. |
CKafka instance | ckafka-xxxxxxxx | Available in a single AZ of a region | Users can only create CKafka instances in specific AZs. |
Related Operations
Migrating Instances to Other AZs
CKafka supports migrating instances across AZs in the same region. For such needs, submit a ticket for assistance.
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