What Is a Level 3 Public DNS Server?


Scott Campbell

A Level 3 Public DNS Server is a powerful tool that plays a crucial role in connecting your device to the internet. DNS, short for Domain Name System, is responsible for translating human-readable domain names like www.example.com into IP addresses that computers can understand. While most internet users rely on their ISP’s default DNS server, using a Level 3 Public DNS Server can offer numerous benefits, including improved speed, security, and reliability.

Why Choose a Level 3 Public DNS Server?

When you connect to the internet, your device automatically queries a DNS server to resolve domain names into IP addresses. This process can sometimes introduce latency or slowdowns due to various factors such as network congestion or the performance of the default DNS server provided by your Internet Service Provider (ISP).

By switching to a Level 3 Public DNS Server, you can potentially enhance your browsing experience by reducing latency and improving response times. Level 3 Communications is a global communications company known for its extensive network infrastructure and advanced technologies.

How to Configure Your Device

To start using a Level 3 Public DNS Server, you need to configure your device with the appropriate settings. The steps may vary slightly depending on the operating system you use:


  1. Go to Control Panel: Open the Start menu, search for “Control Panel,” and click on it.
  2. Select Network and Internet: In the Control Panel window, choose “Network and Internet. “
  3. Open Network and Sharing Center: Click on “Network and Sharing Center. “
  4. Select Change Adapter Settings: On the left sidebar, click on “Change adapter settings.

  5. Choose Your Network Adapter: Right-click on the network adapter you are using (e.g., Ethernet or Wi-Fi) and select “Properties. “
  6. Configure DNS Server: In the Properties window, select “Internet Protocol Version 4 (TCP/IPv4)” and click on the “Properties” button.
  7. Enter Level 3 DNS Server Addresses: In the DNS settings, choose the option to input custom DNS server addresses. Enter the following addresses: Primary DNS –, Secondary DNS – 209.4.
  8. Save Changes: Click on “OK” to save the changes.


  1. Go to System Preferences: Click on the Apple menu in the top-left corner of your screen and select “System Preferences.”
  2. Select Network: In the System Preferences window, choose “Network.”
  3. Select Your Network Connection: On the left sidebar, select your active network connection (e., Wi-Fi or Ethernet).
  4. Select Advanced: Click on the “Advanced” button in the lower-right corner.
  5. Navigate to DNS: In the Advanced settings, go to the “DNS” tab.
  6. Add Level 3 DNS Servers: Click on the “+” button below the DNS Servers list and enter these addresses: Primary DNS – 209.


Using a Level 3 Public DNS Server can significantly improve your internet experience by offering faster and more reliable DNS resolution. By reducing latency and optimizing response times, you can enjoy smoother browsing, streaming, and online gaming. Remember to follow the appropriate steps to configure your device with the Level 3 DNS server addresses mentioned above and enjoy a more efficient internet connection.