China Unicom Public DNS Resolution IP Database

Tool Introduction

The China Unicom Public DNS Resolution IP Database is an online query tool specifically designed for China Unicom users and relevant technical personnel. It provides public DNS server IP addresses across China for China Unicom, with detailed annotations of the province, city, and specific data center location for each IP address. With this tool, you can easily find Unicom DNS servers for your desired region to configure networks, troubleshoot issues, or optimize network access speed.

How to Use

1. On the tool interface, you will see a table listing all China Unicom public DNS server information.
2. The table includes three columns: "Start IP", "End IP", and "Geographical Location".
3. You can browse the entire list directly, or use the search/filter function provided by the tool (if available) to quickly locate DNS servers for a specific province or city.
4. The found IP address (e.g., 202.106.0.20) is an available Unicom public DNS server for that region.

Frequently Asked Questions

• Q: What information does this tool provide?
• A: This tool provides the public DNS server IP address ranges and their detailed geographical location information for various provinces and cities of China Unicom.
• Q: Does the data include all Unicom DNS servers?
• A: This IP database strives to include common China Unicom public DNS server IPs, but due to the complexity of network environments and potential dynamic adjustments of IP addresses, some less common or recently changed IPs may not be included in a timely manner.
• Q: How do I use these DNS server IPs?
• A: You can set the preferred DNS or alternate DNS server in your router, computer, or mobile device's network settings to the queried IP address to optimize network resolution.
• Q: How often is the data updated?
• A: The IP database data for this tool is regularly maintained and updated to ensure the accuracy and timeliness of the information.

Notes

• The data provided by this tool is for reference only, and the availability and performance of specific DNS servers may vary depending on your network environment.
• When using these DNS servers, please ensure you are a China Unicom user to get the best network resolution experience.
• Some IP addresses may represent an IP range, such as "202.106.196.212" to "202.106.196.217", which means that IPs within this range may all be available DNS servers.
• If you encounter resolution problems, it is recommended to try other DNS servers in the same region from the list or switch back to the default DNS.