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    Object Storage Service:Regions and endpoints

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    Object Storage Service:Regions and endpoints

    Last Updated:Dec 09, 2025

    When deploying Object Storage Service (OSS) across multiple regions, choosing the right region and endpoint is critical for performance, cost, and compliance. Understanding these factors helps you improve access performance, optimize resource allocation, and meet data compliance requirements.

    A region is the physical location of an Alibaba Cloud data center. Consider the following factors when you select a region:

    • Connectivity with other Alibaba Cloud services: When your other cloud services are in the same region as OSS, they can communicate over the internal network. This setup eliminates public network traffic charges and provides a more stable, low-latency connection.

    • Cost considerations: Because product prices and discount policies vary by region, you can control costs by selecting a region with more favorable pricing. For more information, see OSS Pricing.

    • Compliance requirements: Different regions and industries have different data compliance requirements. Select a region that meets the compliance requirements of your business.

    • Product features: New features are often released for public preview in specific regions. To use the latest features, you can create a bucket in a supported region. For more information about feature releases, see Release notes.

    • Geographic proximity: To minimize network latency and improve the user experience, choose the region closest to your applications and primary user base.

    How to quickly test network latency to different regions

    Use the curl command to quickly test the network latency from your client's location to different OSS regional endpoints. This test helps you choose a region. Lower values for time_connect and time_starttransfer usually indicate better network quality.

    # Test the latency to China (Hangzhou)
curl -o /dev/null -s -w "Connect: %{time_connect}s\nStart Transfer: %{time_starttransfer}s\nTotal: %{time_total}s\n" "https://oss-cn-hangzhou.aliyuncs.com"

# Test the latency to China (Beijing)
curl -o /dev/null -s -w "Connect: %{time_connect}s\nStart Transfer: %{time_starttransfer}s\nTotal: %{time_total}s\n" "https://oss-cn-beijing.aliyuncs.com"

    Public cloud

    The names of some regions outside the Chinese mainland may differ between the OSS pricing page and the resource plan purchase page. However, these different names refer to the same physical location. For example, the US (Silicon Valley) region may be displayed as US West 1 or US West. For more information, see OSS Pricing or Purchase a resource plan.

    Important

    Due to a policy change to improve compliance and security, starting March 20, 2025, new OSS users must use a custom domain name (CNAME) to perform data API operations on OSS buckets located in Chinese mainland regions. Default public endpoints are restricted for these operations. Refer to the official announcement for a complete list of the affected operations. If you access your data via HTTPS, you must bind a valid SSL Certificate to your custom domain. This is mandatory for OSS Console access, as the console enforces HTTPS.

    Asia-Pacific - China

    Region

    Region ID

    Public endpoint

    Internal endpoint

    Dual-stack endpoint

    Internal VIP CIDR blocks

    China (Hangzhou)

    cn-hangzhou

    oss-cn-hangzhou.aliyuncs.com

    oss-cn-hangzhou-internal.aliyuncs.com

    cn-hangzhou.oss.aliyuncs.com

    • 100.118.28.0/24

    • 100.114.102.0/24

    • 100.98.170.0/24

    • 100.118.31.0/24

    China (Shanghai)

    cn-shanghai

    oss-cn-shanghai.aliyuncs.com

    oss-cn-shanghai-internal.aliyuncs.com

    cn-shanghai.oss.aliyuncs.com

    • 100.98.35.0/24

    • 100.98.110.0/24

    • 100.98.169.0/24

    • 100.118.102.0/24

    China (Nanjing - Local Region) (Closing Down)

    cn-nanjing

    oss-cn-nanjing.aliyuncs.com

    oss-cn-nanjing-internal.aliyuncs.com

    Not supported

    100.114.142.0/24

    China (Qingdao)

    cn-qingdao

    oss-cn-qingdao.aliyuncs.com

    oss-cn-qingdao-internal.aliyuncs.com

    cn-qingdao.oss.aliyuncs.com

    • 100.115.173.0/24

    • 100.99.113.0/24

    • 100.99.114.0/24

    • 100.99.115.0/24

    China (Beijing)

    cn-beijing

    oss-cn-beijing.aliyuncs.com

    oss-cn-beijing-internal.aliyuncs.com

    cn-beijing.oss.aliyuncs.com

    • 100.118.58.0/24

    • 100.118.167.0/24

    • 100.118.170.0/24

    • 100.118.171.0/24

    • 100.118.172.0/24

    • 100.118.173.0/24

    China (Zhangjiakou)

    cn-zhangjiakou

    oss-cn-zhangjiakou.aliyuncs.com

    oss-cn-zhangjiakou-internal.aliyuncs.com

    cn-zhangjiakou.oss.aliyuncs.com

    • 100.118.90.0/24

    • 100.98.159.0/24

    • 100.114.0.0/24

    • 100.114.1.0/24

    China (Hohhot)

    cn-huhehaote

    oss-cn-huhehaote.aliyuncs.com

    oss-cn-huhehaote-internal.aliyuncs.com

    cn-huhehaote.oss.aliyuncs.com

    • 100.118.195.0/24

    • 100.99.110.0/24

    • 100.99.111.0/24

    • 100.99.112.0/24

    China (Ulanqab)

    cn-wulanchabu

    oss-cn-wulanchabu.aliyuncs.com

    oss-cn-wulanchabu-internal.aliyuncs.com

    cn-wulanchabu.oss.aliyuncs.com

    • 100.114.11.0/24

    • 100.114.12.0/24

    • 100.114.100.0/24

    • 100.118.214.0/24

    China (Shenzhen)

    cn-shenzhen

    oss-cn-shenzhen.aliyuncs.com

    oss-cn-shenzhen-internal.aliyuncs.com

    cn-shenzhen.oss.aliyuncs.com

    • 100.118.78.0/24

    • 100.118.203.0/24

    • 100.118.204.0/24

    • 100.118.217.0/24

    China (Heyuan)

    cn-heyuan

    oss-cn-heyuan.aliyuncs.com

    oss-cn-heyuan-internal.aliyuncs.com

    cn-heyuan.oss.aliyuncs.com

    • 100.98.83.0/24

    • 100.118.174.0/24

    China (Guangzhou)

    cn-guangzhou

    oss-cn-guangzhou.aliyuncs.com

    oss-cn-guangzhou-internal.aliyuncs.com

    cn-guangzhou.oss.aliyuncs.com

    • 100.115.33.0/24

    • 100.114.101.0/24

    China (Chengdu)

    cn-chengdu

    oss-cn-chengdu.aliyuncs.com

    oss-cn-chengdu-internal.aliyuncs.com

    cn-chengdu.oss.aliyuncs.com

    • 100.115.155.0/24

    • 100.99.107.0/24

    • 100.99.108.0/24

    • 100.99.109.0/24

    China (Hong Kong)

    cn-hongkong

    oss-cn-hongkong.aliyuncs.com

    oss-cn-hongkong-internal.aliyuncs.com

    cn-hongkong.oss.aliyuncs.com

    • 100.115.61.0/24

    • 100.99.103.0/24

    • 100.99.104.0/24

    • 100.99.106.0/24

    Asia-Pacific - Other

    Region

    Region ID

    Public endpoint

    Internal endpoint

    Dual-stack endpoint

    Internal VIP CIDR blocks

    Japan (Tokyo)

    ap-northeast-1

    oss-ap-northeast-1.aliyuncs.com

    oss-ap-northeast-1-internal.aliyuncs.com

    Not supported

    • 100.114.211.0/24

    • 100.114.114.0/25

    South Korea (Seoul)

    ap-northeast-2

    oss-ap-northeast-2.aliyuncs.com

    oss-ap-northeast-2-internal.aliyuncs.com

    Not supported

    100.99.119.0/24

    Singapore

    ap-southeast-1

    oss-ap-southeast-1.aliyuncs.com

    oss-ap-southeast-1-internal.aliyuncs.com

    Not supported

    • 100.118.219.0/24

    • 100.99.213.0/24

    • 100.99.116.0/24

    • 100.99.117.0/24

    Malaysia (Kuala Lumpur)

    ap-southeast-3

    oss-ap-southeast-3.aliyuncs.com

    oss-ap-southeast-3-internal.aliyuncs.com

    Not supported

    • 100.118.165.0/24

    • 100.99.125.0/24

    • 100.99.130.0/24

    • 100.99.131.0/24

    Indonesia (Jakarta)

    ap-southeast-5

    oss-ap-southeast-5.aliyuncs.com

    oss-ap-southeast-5-internal.aliyuncs.com

    Not supported

    100.114.98.0/24

    Philippines (Manila)

    ap-southeast-6

    oss-ap-southeast-6.aliyuncs.com

    oss-ap-southeast-6-internal.aliyuncs.com

    Not supported

    100.115.16.0/24

    Thailand (Bangkok)

    ap-southeast-7

    oss-ap-southeast-7.aliyuncs.com

    oss-ap-southeast-7-internal.aliyuncs.com

    Not supported

    100.98.249.0/24

    Europe and Americas

    Region

    Region ID

    Public endpoint

    Internal endpoint

    Dual-stack endpoint

    Internal VIP CIDR blocks

    Germany (Frankfurt)

    eu-central-1

    oss-eu-central-1.aliyuncs.com

    oss-eu-central-1-internal.aliyuncs.com

    eu-central-1.oss.aliyuncs.com

    100.115.154.0/24

    UK (London)

    eu-west-1

    oss-eu-west-1.aliyuncs.com

    oss-eu-west-1-internal.aliyuncs.com

    Not supported

    100.114.114.128/25

    US (Silicon Valley)

    us-west-1

    oss-us-west-1.aliyuncs.com

    oss-us-west-1-internal.aliyuncs.com

    Not supported

    100.115.107.0/24

    US (Virginia)

    us-east-1

    oss-us-east-1.aliyuncs.com

    oss-us-east-1-internal.aliyuncs.com

    Not supported

    • 100.115.60.0/24

    • 100.99.100.0/24

    • 100.99.101.0/24

    • 100.99.102.0/24

    Mexico

    na-south-1

    oss-na-south-1.aliyuncs.com

    oss-na-south-1-internal.aliyuncs.com

    Not supported

    100.115.112.0/27

    Middle East

    Region

    Region ID

    Public endpoint

    Internal endpoint

    Dual-stack endpoint

    Internal VIP CIDR blocks

    UAE (Dubai)

    me-east-1

    oss-me-east-1.aliyuncs.com

    oss-me-east-1-internal.aliyuncs.com

    Not supported

    100.99.235.0/24

    SAU (Riyadh - Partner Region)

    me-central-1

    oss-me-central-1.aliyuncs.com

    oss-me-central-1-internal.aliyuncs.com

    Not supported

    100.99.121.0/24